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313112132312 = 23726813208529
BaseRepresentation
bin1001000111001101110…
…11111111101011011000
31002221012022201100211012
410203212323333223120
520112223201213222
6355501451353052
731423132132340
oct4434673775330
91087168640735
10313112132312
111108766aa391
1250824752788
13236ac501395
1411224739d20
1582288b01e2
hex48e6effad8

313112132312 has 32 divisors (see below), whose sum is σ = 670982810400. Its totient is φ = 134185265664.

The previous prime is 313112132279. The next prime is 313112132317. The reversal of 313112132312 is 213231211313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112132317) 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, 1397264 + ... + 1605792.

It is an arithmetic number, because the mean of its divisors is an integer number (20968212825).

Almost surely, 2313112132312 is an apocalyptic number.

It is an amenable number.

313112132312 is an abundant number, since it is smaller than the sum of its proper divisors (357870678088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313112132312 is a wasteful number, since it uses less digits than its factorization.

313112132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235355 (or 235351 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

Adding to 313112132312 its reverse (213231211313), we get a palindrome (526343343625).

The spelling of 313112132312 in words is "three hundred thirteen billion, one hundred twelve million, one hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 26813 53626 107252 187691 208529 214504 375382 417058 750764 834116 1459703 1501528 1668232 2919406 5838812 11677624 5591288077 11182576154 22365152308 39139016539 44730304616 78278033078 156556066156 313112132312