Base | Representation |
---|---|
bin | 11101011100010111… |
… | …101000111101011111 |
3 | 10000121021012120122112 |
4 | 131130113220331133 |
5 | 1004221301101111 |
6 | 22305023504235 |
7 | 2166302402252 |
oct | 353427507537 |
9 | 100537176575 |
10 | 31614472031 |
11 | 124535aa83a |
12 | 616375807b |
13 | 2c9a9c70ac |
14 | 175ca29099 |
15 | c50735e8b |
hex | 75c5e8f5f |
31614472031 has 8 divisors (see below), whose sum is σ = 32302694400. Its totient is φ = 30931329240.
The previous prime is 31614471989. The next prime is 31614472033. The reversal of 31614472031 is 13027441613.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31614472031 is a prime.
It is a super-2 number, since 2×316144720312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31614472033) 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, 1257311 + ... + 1282208.
It is an arithmetic number, because the mean of its divisors is an integer number (4037836800).
Almost surely, 231614472031 is an apocalyptic number.
31614472031 is a deficient number, since it is larger than the sum of its proper divisors (688222369).
31614472031 is a wasteful number, since it uses less digits than its factorization.
31614472031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2539789.
The product of its (nonzero) digits is 12096, while the sum is 32.
The spelling of 31614472031 in words is "thirty-one billion, six hundred fourteen million, four hundred seventy-two thousand, thirty-one".
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