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311348996 = 22731358697
BaseRepresentation
bin10010100011101…
…100111100000100
3210200212011112022
4102203230330010
51114201131441
650521142312
710500265010
oct2243547404
9720764468
10311348996
1114a826122
128832a998
134c67269a
142d4c9540
151c50184b
hex128ecf04

311348996 has 24 divisors (see below), whose sum is σ = 642786816. Its totient is φ = 129130560.

The previous prime is 311348981. The next prime is 311349001. The reversal of 311348996 is 699843113.

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, 178481 + ... + 180216.

It is an arithmetic number, because the mean of its divisors is an integer number (26782784).

Almost surely, 2311348996 is an apocalyptic number.

It is an amenable number.

311348996 is an abundant number, since it is smaller than the sum of its proper divisors (331437820).

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

311348996 is a wasteful number, since it uses less digits than its factorization.

311348996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358739 (or 358737 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 311348996 is about 17645.0841879544. The cubic root of 311348996 is about 677.7702310207.

The spelling of 311348996 in words is "three hundred eleven million, three hundred forty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 358697 717394 1434788 2510879 5021758 10043516 11119607 22239214 44478428 77837249 155674498 311348996