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313990972 = 22423118553
BaseRepresentation
bin10010101101110…
…001111100111100
3210212211101122021
4102231301330330
51120340202342
651053525524
710531610401
oct2255617474
9725741567
10313990972
11151270079
12891a38a4
1350089099
142d9b62a8
151c874567
hex12b71f3c

313990972 has 12 divisors (see below), whose sum is σ = 549643696. Its totient is φ = 156949920.

The previous prime is 313990967. The next prime is 313990987. The reversal of 313990972 is 279099313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7648 + ... + 26200.

Almost surely, 2313990972 is an apocalyptic number.

It is an amenable number.

313990972 is a deficient number, since it is larger than the sum of its proper divisors (235652724).

313990972 is a wasteful number, since it uses less digits than its factorization.

313990972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22788 (or 22786 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 313990972 is about 17719.7904050810. The cubic root of 313990972 is about 679.6819244819.

The spelling of 313990972 in words is "three hundred thirteen million, nine hundred ninety thousand, nine hundred seventy-two".

Divisors: 1 2 4 4231 8462 16924 18553 37106 74212 78497743 156995486 313990972