Base | Representation |
---|---|
bin | 11101000111011010… |
… | …101010001111111111 |
3 | 2222200202202000101102 |
4 | 131013122222033333 |
5 | 1003011303122312 |
6 | 22210105203315 |
7 | 2154503424050 |
oct | 350732521777 |
9 | 88622660342 |
10 | 31262942207 |
11 | 12293130222 |
12 | 6085a9053b |
13 | 2c42c26793 |
14 | 1728080727 |
15 | c2e948ec2 |
hex | 7476aa3ff |
31262942207 has 16 divisors (see below), whose sum is σ = 35829319680. Its totient is φ = 26721737952.
The previous prime is 31262942197. The next prime is 31262942237. The reversal of 31262942207 is 70224926213.
It is a happy number.
It is not a de Polignac number, because 31262942207 - 212 = 31262938111 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31262942237) 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 15 ways as a sum of consecutive naturals, for example, 3977093 + ... + 3984945.
It is an arithmetic number, because the mean of its divisors is an integer number (2239332480).
Almost surely, 231262942207 is an apocalyptic number.
31262942207 is a deficient number, since it is larger than the sum of its proper divisors (4566377473).
31262942207 is an equidigital number, since it uses as much as digits as its factorization.
31262942207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9382.
The product of its (nonzero) digits is 72576, while the sum is 38.
The spelling of 31262942207 in words is "thirty-one billion, two hundred sixty-two million, nine hundred forty-two thousand, two hundred seven".
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