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315492 = 22361431
BaseRepresentation
bin1001101000001100100
3121000202220
41031001210
540043432
610432340
72452542
oct1150144
9530686
10315492
111a6041
121326b0
13b07a8
1482d92
156372c
hex4d064

315492 has 24 divisors (see below), whose sum is σ = 749952. Its totient is φ = 103200.

The previous prime is 315481. The next prime is 315493. The reversal of 315492 is 294513.

315492 is nontrivially palindromic in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315492.

It is not an unprimeable number, because it can be changed into a prime (315493) by changing a digit.

315492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2315492 is an apocalyptic number.

It is an amenable number.

315492 is an abundant number, since it is smaller than the sum of its proper divisors (434460).

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

315492 is a wasteful number, since it uses less digits than its factorization.

315492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 497 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 315492 is about 561.6867454373. The cubic root of 315492 is about 68.0763272119.

The spelling of 315492 in words is "three hundred fifteen thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 431 732 862 1293 1724 2586 5172 26291 52582 78873 105164 157746 315492