Base | Representation |
---|---|
bin | 11101000000110110… |
… | …100001101111111011 |
3 | 2222102002111120011020 |
4 | 131000312201233323 |
5 | 1002300104310112 |
6 | 22151132433523 |
7 | 2151665326635 |
oct | 350066415773 |
9 | 88362446136 |
10 | 31152806907 |
11 | 12236a46a12 |
12 | 60550188a3 |
13 | 2c26174971 |
14 | 17175b1a55 |
15 | c24e4148c |
hex | 740da1bfb |
31152806907 has 8 divisors (see below), whose sum is σ = 41835904320. Its totient is φ = 20619123720.
The previous prime is 31152806899. The next prime is 31152806911. The reversal of 31152806907 is 70960825113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31152806907 - 23 = 31152806899 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31152806917) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37353069 + ... + 37353902.
It is an arithmetic number, because the mean of its divisors is an integer number (5229488040).
Almost surely, 231152806907 is an apocalyptic number.
31152806907 is a deficient number, since it is larger than the sum of its proper divisors (10683097413).
31152806907 is a wasteful number, since it uses less digits than its factorization.
31152806907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74707113.
The product of its (nonzero) digits is 90720, while the sum is 42.
The spelling of 31152806907 in words is "thirty-one billion, one hundred fifty-two million, eight hundred six thousand, nine hundred seven".
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