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313379380 = 22515668969
BaseRepresentation
bin10010101011011…
…100101000110100
3210211200022200201
4102223130220310
51120211120010
651032450244
710523452336
oct2253345064
9724608621
10313379380
11150992626
1288b49984
134cc038b2
142d897456
151c7a323a
hex12adca34

313379380 has 12 divisors (see below), whose sum is σ = 658096740. Its totient is φ = 125351744.

The previous prime is 313379371. The next prime is 313379383. The reversal of 313379380 is 83973313.

It can be written as a sum of positive squares in 2 ways, for example, as 62283664 + 251095716 = 7892^2 + 15846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313379383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7834465 + ... + 7834504.

It is an arithmetic number, because the mean of its divisors is an integer number (54841395).

Almost surely, 2313379380 is an apocalyptic number.

It is an amenable number.

313379380 is an abundant number, since it is smaller than the sum of its proper divisors (344717360).

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

313379380 is a wasteful number, since it uses less digits than its factorization.

313379380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15668978 (or 15668976 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 313379380 is about 17702.5246787005. The cubic root of 313379380 is about 679.2403425579.

The spelling of 313379380 in words is "three hundred thirteen million, three hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 15668969 31337938 62675876 78344845 156689690 313379380