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315371407 = 1323495347
BaseRepresentation
bin10010110011000…
…010111110001111
3210222102112020111
4102303002332033
51121213341112
651143300451
710546420111
oct2263027617
9728375214
10315371407
1115202322a
128974a727
1350450500
142dc553b1
151ca485a7
hex12cc2f8f

315371407 has 12 divisors (see below), whose sum is σ = 342539400. Its totient is φ = 290223648.

The previous prime is 315371393. The next prime is 315371431. The reversal of 315371407 is 704173513.

It is a de Polignac number, because none of the positive numbers 2k-315371407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315311407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56308 + ... + 61654.

It is an arithmetic number, because the mean of its divisors is an integer number (28544950).

Almost surely, 2315371407 is an apocalyptic number.

315371407 is a deficient number, since it is larger than the sum of its proper divisors (27167993).

315371407 is a wasteful number, since it uses less digits than its factorization.

315371407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722 (or 5709 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 315371407 is about 17758.6994737790. The cubic root of 315371407 is about 680.6765232235.

The spelling of 315371407 in words is "three hundred fifteen million, three hundred seventy-one thousand, four hundred seven".

Divisors: 1 13 169 349 4537 5347 58981 69511 903643 1866103 24259339 315371407