This nBAB for the number

9871was created to complete the Truman-Gerald Prime Pair (9901,9871).MathBabbler Number Analyst (MBNA) output: ========================================= 9871 is a natural, whole, integer 9871 is odd 9871 proper divisors are: 1, 9871 has 1 proper divisors 9871 is deficient (sum of divisors is 1; ratio: 0.000101307) 9871 is unhappy 9871 is a Squarefree Number 9871 is prime (not composite) ...Truman Gerald prime with 9901 ...OEIS:002145 (4n+3; n=2467) ...reversible prime with 1789 9871 is Arithmetic (A003601) 9871 in octal is 023217 9871 in hexadecimal is 0x268f 9871 in binary is 10011010001111 (is evil) 9871 nearest square numbers: -70...129 (9801...10000 [100]) sqrt(9871) = 99.3529 ln(9871) = 9.19736 log(9871) = 3.99436 9871 reciprocal is .00010130685847431871137676020666 9871 is an apocalyptic power 9871! is inf 9871 is 3142.04 Pi years 9871 is 493 score and 11 years 9871 is 4936^2 - 4935^2 and 4936 + 4935 = 9871 9871 is a multiple of 1 & it contains a 1 (A011531)

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 06 September 2015

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