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31307141456 = 244167712303
BaseRepresentation
bin11101001010000011…
…010001000101010000
32222210211220120100122
4131022003101011100
51003104112011311
622214324405412
72155551211613
oct351203210520
988724816318
1031307141456
1112306079828
126098846868
132c4c130796
14172dca817a
15c3377a0db
hex74a0d1150

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".

Divisors: 1 2 4 8 16 41 67 82 134 164 268 328 536 656 1072 2747 5494 10988 21976 43952 712303 1424606 2849212 5698424 11396848 29204423 47724301 58408846 95448602 116817692 190897204 233635384 381794408 467270768 763588816 1956696341 3913392682 7826785364 15653570728 31307141456