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31268486452 = 2275412064199
BaseRepresentation
bin11101000111101111…
…110011110100110100
32222201011011200122211
4131013233303310310
51003014213031302
622210424103204
72154601515040
oct350757636464
988634150584
1031268486452
1112296277745
126087904b04
132c441181b8
141728ac5020
15c30191ad7
hex747bf3d34

31268486452 has 24 divisors (see below), whose sum is σ = 62652598400. Its totient is φ = 13376003040.

The previous prime is 31268486441. The next prime is 31268486471. The reversal of 31268486452 is 25468486213.

It is a junction number, because it is equal to n+sod(n) for n = 31268486396 and 31268486405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016952 + ... + 1047247.

Almost surely, 231268486452 is an apocalyptic number.

It is an amenable number.

31268486452 is an abundant number, since it is smaller than the sum of its proper divisors (31384111948).

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

31268486452 is a wasteful number, since it uses less digits than its factorization.

31268486452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064751 (or 2064749 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The spelling of 31268486452 in words is "thirty-one billion, two hundred sixty-eight million, four hundred eighty-six thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 541 1082 2164 3787 7574 15148 2064199 4128398 8256796 14449393 28898786 57797572 1116731659 2233463318 4466926636 7817121613 15634243226 31268486452