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31155222255113 = 112997665273527
BaseRepresentation
bin1110001010101111000111…
…11101001001011000001001
311002022102002000011202002202
413011113203331021120021
513040421343344130423
6150132302253205545
76363614310502115
oct705274375113011
9132272060152082
1031155222255113
119a21945825710
1235b2110a908b5
13144cc03b92b08
14799cc697c745
15390643829728
hex1c55e3f49609

31155222255113 has 8 divisors (see below), whose sum is σ = 35159498470080. Its totient is φ = 27346276587280.

The previous prime is 31155222255107. The next prime is 31155222255121.

31155222255113 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31155222255113 - 214 = 31155222238729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31155222255103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48832636445 + ... + 48832637082.

It is an arithmetic number, because the mean of its divisors is an integer number (4394937308760).

Almost surely, 231155222255113 is an apocalyptic number.

It is an amenable number.

31155222255113 is a deficient number, since it is larger than the sum of its proper divisors (4004276214967).

31155222255113 is a wasteful number, since it uses less digits than its factorization.

31155222255113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97665273567.

The product of its digits is 90000, while the sum is 38.

The spelling of 31155222255113 in words is "thirty-one trillion, one hundred fifty-five billion, two hundred twenty-two million, two hundred fifty-five thousand, one hundred thirteen".

Divisors: 1 11 29 319 97665273527 1074318008797 2832292932283 31155222255113