MathBabbler's rental car odometer hit 19,891 miles while in Keokuk, Iowa. [7/2/2016]

MathBabbler Number Analyst (MBNA) output: ========================================= 19891 is natural, counting, whole, integer 19891 is odd (not even) 19891 proper divisors are: 1, 19891 has 1 proper divisors 19891 is deficient (sum of divisors is 1; ratio: 5.0274e-05) 19891 is unhappy 19891 is a Squarefree Number 19891 is prime (not composite) ...Twin prime with 19889 ...Truman Gerald (p-30) prime with 19861 ...OEIS:002145 (4n+3; n=4972) ...reversible prime prime with 19891 19891 is palindromic 19891 is Arithmetic (A003601) 19891 in octal is 046663 19891 in hexadecimal is 0x4db3 19891 in binary is 100110110110011 (is odious) 19891 nearest square numbers: -10...273 (19881...20164 [142]) sqrt(19891) = 141.035 ln(19891) = 9.89802 log(19891) = 4.29866 19891 reciprocal is .00005027399326328490271982303554 19891 is an apocalyptic power (2^19891 contains 666) 19891! is inf 19891 is 6331.5 Pi years 19891 is 994 score and 11 years 19891 is 9946^2 - 9945^2 and 9946 + 9945 = 19891 19891 is a multiple of 1 & it contains a 1 (A011531)

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

**Created:** 06 July 2016

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