Base | Representation |
---|---|
bin | 11101001010000011… |
… | …010001000101010000 |
3 | 2222210211220120100122 |
4 | 131022003101011100 |
5 | 1003104112011311 |
6 | 22214324405412 |
7 | 2155551211613 |
oct | 351203210520 |
9 | 88724816318 |
10 | 31307141456 |
11 | 12306079828 |
12 | 6098846868 |
13 | 2c4c130796 |
14 | 172dca817a |
15 | c3377a0db |
hex | 74a0d1150 |
31307141456 has 40 divisors (see below), whose sum is σ = 63064546944. Its totient is φ = 15043818240.
The previous prime is 31307141431. The next prime is 31307141473. The reversal of 31307141456 is 65414170313.
It is a super-2 number, since 2×313071414562 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312200 + ... + 400103.
Almost surely, 231307141456 is an apocalyptic number.
It is an amenable number.
31307141456 is an abundant number, since it is smaller than the sum of its proper divisors (31757405488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31307141456 is a wasteful number, since it uses less digits than its factorization.
31307141456 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 712419 (or 712413 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 35.
The spelling of 31307141456 in words is "thirty-one billion, three hundred seven million, one hundred forty-one thousand, four hundred fifty-six".
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