About the Number 2,021 (two thousand twenty-one)

This nBAB was created to celebrate the start of the year 2021.

MathBabbler Number Analyst (MBNA) output:
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2021 is natural, counting, whole, integer
2021 is odd (not even)
2021 is not extremely odd
2021 proper divisors are: 1,43,47,
2021 has 3 proper divisors
2021 is deficient (sum of divisors is 91; ratio: 0.0450272)
2021 is unhappy
2021 is a Squarefree Number
2021 is composite (not prime)
2021 has the prime factors: 43*47 (sum=90)
2021 is semiprime (biprime or 2-almost prime)
2021 is a 47-smooth number
2021 is Recaman number 3711
2021 digital root is 5
2021 in octal is 03745
2021 in hexadecimal is 0x7e5
2021 in binary is 11111100101 (is evil)
2021 nearest square numbers: -85...4 (1936...2025 [45])
sqrt(2021) = 44.9555
ln(2021) = 7.61135
log(2021) = 3.30557
2021 is an apocalyptic power (2^2021 contains 666)
2021! is inf
2021 is 643.304 Pi years
2021 is 101 score and 1 year
2021 written as a Roman numeral is MMXXI
2021 is 1011^2 - 1010^2 and 1011 + 1010 = 2021
2021 is a multiple of 1 & it contains a 1 (A011531)
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2021 reciprocal is 0.000494804552201880257298367144977733795150915388421573478476001979218208807521029193468579910935180603661553686293913904007916872835230084116773874319643740722414646214745175655616031667491340920336467095497278574962889658584858980702622464126669965363681345868381989114299851558634339435922810489856506679861454725383473527956457199406234537357743691241959426026719445818901533894111825828797624938149430974764967837704106877783275606135576447303315190499752597723899059871350816427511133102424542305789213260761999010390895596239485403265710044532409698169223156853043047996041563582384957941613062840178129638792676892627412172191984166254329539831766452251360712518555170707570509648688767936665017318159327065809005442850074220682830282038594755071746660069272637308263236021771400296882731321128154379020286986640277090549233052944087085601187530925284512617516081147946561108362196932211776348342404750123701138050470064324591786244433448787728847105393369619
remainders: 
1,10,100,1000,1916,971,1626,92,920,1116,1055,445,408,38,380,1779,1622,52,520,1158,1475,603,1988,1691,742,1357,1444,293,909,1006,1976,1571,1563,1483,683,767,1607,1923,1041,305,1029,185,1850,311,1089,785,1787,1702,852,436,318,1159,1485,703,967,1586,1713,962,1536,1213,4,40,400,1979,1601,1863,441,368,1659,422,178,1780,1632,152,1520,1053,425,208,59,590,1858,391,1889,701,947,1386,1734,1172,1615,2003,1841,221,189,1890,711,1047,365,1629,122,1220,74,740,1337,1244,314,1119,1085,745,1387,1744,1272,594,1898,791,1847,281,789,1827,81,810,16,160,1600,1853,341,1389,1764,1472,573,1688,712,1057,465,608,17,170,1700,832,236,339,1369,1564,1493,783,1767,1502,873,646,397,1949,1301,884,756,1497,823,146,1460,453,488,838,296,939,1306,934,1256,434,298,959,1506,913,1046,355,1529,1143,1325,1124,1135,1245,324,1219,64,640,337,1349,1364,1514,993,1846,271,689,827,186,1860,411,68,680,737,1307,944,1356,1434,193,1930,1111,1005,1966,1471,563,1588,1733,1162,1515,1003,1946,1271,584,1798,1812,1952,1331,1184,1735,1182,1715,982,1736,1192,1815,1982,1631,142,1420,53,530,1258,454,498,938,1296,834,256,539,1348,1354,1414,2014,1951,1321,1084,735,1287,744,1377,1644,272,699,927,1186,1755,1382,1694,772,1657,402,1999,1801,1842,231,289,869,606,2018,1991,1721,1042,315,1129,1185,1745,1282,694,877,686,797,1907,881,726,1197,1865,461,568,1638,212,99,990,1816,1992,1731,1142,1315,1024,135,1350,1374,1614,1993,1741,1242,294,919,1106,955,1466,513,1088,775,1687,702,957,1486,713,1067,565,1608,1933,1141,1305,924,1156,1455,403,2009,1901,821,126,1260,474,698,917,1086,755,1487,723,1167,1565,1503,883,746,1397,1844,251,489,848,396,1939,1201,1905,861,526,1218,54,540,1358,1454,393,1909,901,926,1176,1655,382,1799,1822,31,310,1079,685,787,1807,1902,831,226,239,369,1669,522,1178,1675,582,1778,1612,1973,1541,1263,504,998,1896,771,1647,302,999,1906,871,626,197,1970,1511,963,1546,1313,1004,1956,1371,1584,1693,762,1557,1423,83,830,216,139,1390,1774,1572,1573,1583,1683,662,557,1528,1133,1225,124,1240,274,719,1127,1165,1545,1303,904,956,1476,613,67,670,637,307,1049,385,1829,101,1010,2016,1971,1521,1063,525,1208,1975,1561,1463,483,788,1817,2002,1831,121,1210,1995,1761,1442,273,709,1027,165,1650,332,1299,864,556,1518,1033,225,229,269,669,627,207,49,490,858,496,918,1096,855,466,618,117,1170,1595,1803,1862,431,268,659,527,1228,154,1540,1253,404,2019,2001,1821,21,210,79,790,1837,181,1810,1932,1131,1205,1945,1261,484,798,1917,981,1726,1092,815,66,660,537,1328,1154,1435,203,9,90,900,916,1076,655,487,828,196,1960,1411,1984,1651,342,1399,1864,451,468,638,317,1149,1385,1724,1072,615,87,870,616,97,970,1616,2013,1941,1221,84,840,316,1139,1285,724,1177,1665,482,778,1717,1002,1936,1171,1605,1903,841,326,1239,264,619,127,1270,574,1698,812,36,360,1579,1643,262,599,1948,1291,784,1777,1602,1873,541,1368,1554,1393,1804,1872,531,1268,554,1498,833,246,439,348,1459,443,388,1859,401,1989,1701,842,336,1339,1264,514,1098,875,666,597,1928,1091,805,1987,1681,642,357,1549,1343,1304,914,1056,455,508,1038,275,729,1227,144,1440,253,509,1048,375,1729,1122,1115,1045,345,1429,143,1430,153,1530,1153,1425,103,1030,195,1950,1311,984,1756,1392,1794,1772,1552,1373,1604,1893,741,1347,1344,1314,1014,35,350,1479,643,367,1649,322,1199,1885,661,547,1428,133,1330,1174,1635,182,1820,11,110,1100,895,866,576,1718,1012,15,150,1500,853,446,418,138,1380,1674,572,1678,612,57,570,1658,412,78,780,1737,1202,1915,961,1526,1113,1025,145,1450,353,1509,943,1346,1334,1214,14,140,1400,1874,551,1468,533,1288,754,1477,623,167,1670,532,1278,654,477,728,1217,44,440,358,1559,1443,283,809,6,60,600,1958,1391,1784,1672,552,1478,633,267,649,427,228,259,569,1648,312,1099,885,766,1597,1823,41,410,58,580,1758,1412,1994,1751,1342,1294,814,56,560,1558,1433,183,1830,111,1110,995,1866,471,668,617,107,1070,595,1908,891,826,176,1760,1432,173,1730,1132,1215,24,240,379,1769,1522,1073,625,187,1870,511,1068,575,1708,912,1036,255,529,1248,354,1519,1043,325,1229,164,1640,232,299,969,1606,1913,941,1326,1134,1235,224,219,169,1690,732,1257,444,398,1959,1401,1884,651,447,428,238,359,1569,1543,1283,704,977,1686,692,857,486,818,96,960,1516,1013,25,250,479,748,1417,23,230,279,769,1627,102,1020,95,950,1416,13,130,1300,874,656,497,928,1196,1855,361,1589,1743,1262,494,898,896,876,676,697,907,986,1776,1592,1773,1562,1473,583,1788,1712,952,1436,213,109,1090,795,1887,681,747,1407,1944,1251,384,1819,1

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 31 December 2020

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This work is licensed under a Creative Commons Attribution 3.0 United States License.