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313995284 = 2278498821
BaseRepresentation
bin10010101101110…
…011000000010100
3210212211121112222
4102231303000110
51120340322114
651054001512
710531626101
oct2255630024
9725747488
10313995284
11151273339
12891a6298
135008b035
142d9b7aa8
151c87598e
hex12b73014

313995284 has 6 divisors (see below), whose sum is σ = 549491754. Its totient is φ = 156997640.

The previous prime is 313995257. The next prime is 313995313. The reversal of 313995284 is 482599313.

It can be written as a sum of positive squares in only one way, i.e., 178970884 + 135024400 = 13378^2 + 11620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39249407 + ... + 39249414.

It is an arithmetic number, because the mean of its divisors is an integer number (91581959).

Almost surely, 2313995284 is an apocalyptic number.

It is an amenable number.

313995284 is a deficient number, since it is larger than the sum of its proper divisors (235496470).

313995284 is a wasteful number, since it uses less digits than its factorization.

313995284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78498825 (or 78498823 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 313995284 is about 17719.9120765313. The cubic root of 313995284 is about 679.6850357975.

The spelling of 313995284 in words is "three hundred thirteen million, nine hundred ninety-five thousand, two hundred eighty-four".

Divisors: 1 2 4 78498821 156997642 313995284