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315308 = 22711261
BaseRepresentation
bin1001100111110101100
3121000112002
41030332230
540042213
610431432
72452160
oct1147654
9530462
10315308
111a5994
12132578
13b0696
1482ca0
1563658
hex4cfac

315308 has 12 divisors (see below), whose sum is σ = 630672. Its totient is φ = 135120.

The previous prime is 315281. The next prime is 315313. The reversal of 315308 is 803513.

315308 is an admirable number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 315308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5603 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (52556).

2315308 is an apocalyptic number.

It is an amenable number.

315308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

315308 is a wasteful number, since it uses less digits than its factorization.

315308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11272 (or 11270 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 315308 is about 561.5229291846. The cubic root of 315308 is about 68.0630902359.

It can be divided in two parts, 315 and 308, that multiplied together give a triangular number (97020 = T440).

The spelling of 315308 in words is "three hundred fifteen thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 11261 22522 45044 78827 157654 315308