About the Number 1,489 (one thousand four hundred eighty-nine)

This nBAB for the number 1489 was created to complete the Truman-Gerald Prime Pair (1459, 1489).

MathBabbler Number Analyst (MBNA) output:
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1489 is a natural, whole, integer
1489 is odd
1489 proper divisors are: 1,
1489 has 1 proper divisors
1489 is deficient (sum of divisors is 1; ratio: 0.000671592)
1489 is unhappy
1489 is a Squarefree Number
1489 is prime (not composite)
...Cousin prime with 1493
...Sexy prime with 1483
...Twin prime with 1487
...Truman Gerald prime with 1459
...Pythagorean
...prime triplet {1483, 1487, 1489}
...prime triplet {1487, 1489, 1493}
...prime quadruplet {1481, 1483, 1487, 1489}
1489 is Arithmetic (A003601)
1489 in octal is 02721
1489 in hexadecimal is 0x5d1
1489 in binary is 10111010001 (is evil)
1489 nearest square numbers: -45...32 (1444...1521 [39])
sqrt(1489) = 38.5876
ln(1489) = 7.30586
log(1489) = 3.17289
1489 reciprocal is .00067159167226326393552719946272
1489! is 5.77142e+4079
1489 is 473.963 Pi years
1489 is 74 score and 9 years
1489 written as a Roman numeral is MCDLXXXIX
1489 is 745^2 - 744^2 and 745 + 744 = 1489
1489 is a multiple of 1 & it contains a 1 (A011531)

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 06 September 2015

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