Base | Representation |
---|---|
bin | 110101111101001110… |
… | …1111001111000000011 |
3 | 102002002021021120010211 |
4 | 1223322131321320003 |
5 | 3344301022333211 |
6 | 125121443534551 |
7 | 11241253511362 |
oct | 1537235717003 |
9 | 362067246124 |
10 | 115871292931 |
11 | 45160362419 |
12 | 1a55908a457 |
13 | ac07a10834 |
14 | 5872c8b7d9 |
15 | 30327a9e21 |
hex | 1afa779e03 |
115871292931 has 2 divisors, whose sum is σ = 115871292932. Its totient is φ = 115871292930.
The previous prime is 115871292863. The next prime is 115871292989. The reversal of 115871292931 is 139292178511.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 115871292931 - 211 = 115871290883 is a prime.
It is a super-2 number, since 2×1158712929312 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (115871298931) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57935646465 + 57935646466.
It is an arithmetic number, because the mean of its divisors is an integer number (57935646466).
Almost surely, 2115871292931 is an apocalyptic number.
115871292931 is a deficient number, since it is larger than the sum of its proper divisors (1).
115871292931 is an equidigital number, since it uses as much as digits as its factorization.
115871292931 is an evil number, because the sum of its binary digits is even.
The product of its digits is 272160, while the sum is 49.
The spelling of 115871292931 in words is "one hundred fifteen billion, eight hundred seventy-one million, two hundred ninety-two thousand, nine hundred thirty-one".
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