Base | Representation |
---|---|
bin | 11100111000010110… |
… | …001111001001101001 |
3 | 2222001011000112112200 |
4 | 130320112033021221 |
5 | 1002002042440033 |
6 | 22125034330413 |
7 | 2145313464633 |
oct | 347026171151 |
9 | 88034015480 |
10 | 31010124393 |
11 | 12173452486 |
12 | 6015289a09 |
13 | 2c02738641 |
14 | 170266da53 |
15 | c1765a013 |
hex | 73858f269 |
31010124393 has 12 divisors (see below), whose sum is σ = 44809169028. Its totient is φ = 20665677600.
The previous prime is 31010124391. The next prime is 31010124419. The reversal of 31010124393 is 39342101013.
31010124393 is a `hidden beast` number, since 310 + 101 + 243 + 9 + 3 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 14861560464 + 16148563929 = 121908^2 + 127077^2 .
It is not a de Polignac number, because 31010124393 - 21 = 31010124391 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31010124391) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619458 + ... + 667643.
It is an arithmetic number, because the mean of its divisors is an integer number (3734097419).
Almost surely, 231010124393 is an apocalyptic number.
It is an amenable number.
31010124393 is a deficient number, since it is larger than the sum of its proper divisors (13799044635).
31010124393 is a wasteful number, since it uses less digits than its factorization.
31010124393 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1289784 (or 1289781 counting only the distinct ones).
The product of its (nonzero) digits is 1944, while the sum is 27.
It can be divided in two parts, 31010 and 124393, that added together give a triangular number (155403 = T557).
The spelling of 31010124393 in words is "thirty-one billion, ten million, one hundred twenty-four thousand, three hundred ninety-three".
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