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316457 = 2313759
BaseRepresentation
bin1001101010000101001
3121002002122
41031100221
540111312
610441025
72455421
oct1152051
9532078
10316457
111a6839
12133175
13b106b
1483481
1563b72
hex4d429

316457 has 4 divisors (see below), whose sum is σ = 330240. Its totient is φ = 302676.

The previous prime is 316453. The next prime is 316469. The reversal of 316457 is 754613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754613 = 1744389.

It is a cyclic number.

It is not a de Polignac number, because 316457 - 22 = 316453 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316457.

It is not an unprimeable number, because it can be changed into a prime (316453) 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, 6857 + ... + 6902.

It is an arithmetic number, because the mean of its divisors is an integer number (82560).

2316457 is an apocalyptic number.

It is an amenable number.

316457 is a deficient number, since it is larger than the sum of its proper divisors (13783).

316457 is a wasteful number, since it uses less digits than its factorization.

316457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782.

The product of its digits is 2520, while the sum is 26.

The square root of 316457 is about 562.5451093024. The cubic root of 316457 is about 68.1456652511.

The spelling of 316457 in words is "three hundred sixteen thousand, four hundred fifty-seven".

Divisors: 1 23 13759 316457