Base | Representation |
---|---|
bin | 11101011101011001… |
… | …000000000101001000 |
3 | 10000122110110002011020 |
4 | 131131121000011020 |
5 | 1004240142343323 |
6 | 22310435032440 |
7 | 2166601133625 |
oct | 353531000510 |
9 | 100573402136 |
10 | 31631606088 |
11 | 12462242915 |
12 | 616943b720 |
13 | 2ca1415ba4 |
14 | 176100934c |
15 | c51ebcae3 |
hex | 75d640148 |
31631606088 has 32 divisors (see below), whose sum is σ = 79085247360. Its totient is φ = 10543037760.
The previous prime is 31631606077. The next prime is 31631606099. The reversal of 31631606088 is 88060613613.
It is an interprime number because it is at equal distance from previous prime (31631606077) and next prime (31631606099).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310593 + ... + 399663.
It is an arithmetic number, because the mean of its divisors is an integer number (2471413980).
Almost surely, 231631606088 is an apocalyptic number.
It is an amenable number.
31631606088 is an abundant number, since it is smaller than the sum of its proper divisors (47453641272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31631606088 is a wasteful number, since it uses less digits than its factorization.
31631606088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 103877 (or 103873 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 42.
The spelling of 31631606088 in words is "thirty-one billion, six hundred thirty-one million, six hundred six thousand, eighty-eight".
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