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313054340 = 22515652717
BaseRepresentation
bin10010101010001…
…101010010000100
3210211001210211012
4102222031102010
51120120214330
651021501352
710520626604
oct2252152204
9724053735
10313054340
111507903a5
1288a11858
134cb1b971
142d810c04
151c73bc95
hex12a8d484

313054340 has 12 divisors (see below), whose sum is σ = 657414156. Its totient is φ = 125221728.

The previous prime is 313054321. The next prime is 313054349. The reversal of 313054340 is 43450313.

It can be written as a sum of positive squares in 2 ways, for example, as 175085824 + 137968516 = 13232^2 + 11746^2 .

It is not an unprimeable number, because it can be changed into a prime (313054349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7826339 + ... + 7826378.

It is an arithmetic number, because the mean of its divisors is an integer number (54784513).

Almost surely, 2313054340 is an apocalyptic number.

It is an amenable number.

313054340 is an abundant number, since it is smaller than the sum of its proper divisors (344359816).

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

313054340 is a wasteful number, since it uses less digits than its factorization.

313054340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652726 (or 15652724 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 313054340 is about 17693.3416855042. The cubic root of 313054340 is about 679.0054231909.

The spelling of 313054340 in words is "three hundred thirteen million, fifty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 15652717 31305434 62610868 78263585 156527170 313054340