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315140 = 22572251
BaseRepresentation
bin1001100111100000100
3121000021212
41030330010
540041030
610430552
72451530
oct1147404
9530255
10315140
111a5851
12132458
13b0597
1482bc0
1563595
hex4cf04

315140 has 24 divisors (see below), whose sum is σ = 756672. Its totient is φ = 108000.

The previous prime is 315127. The next prime is 315179. The reversal of 315140 is 41513.

315140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (31528).

2315140 is an apocalyptic number.

It is an amenable number.

315140 is an abundant number, since it is smaller than the sum of its proper divisors (441532).

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

315140 is a wasteful number, since it uses less digits than its factorization.

315140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 315140 is about 561.3733160741. The cubic root of 315140 is about 68.0509998030.

Adding to 315140 its reverse (41513), we get a palindrome (356653).

It can be divided in two parts, 315 and 140, that multiplied together give a square (44100 = 2102).

The spelling of 315140 in words is "three hundred fifteen thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2251 4502 9004 11255 15757 22510 31514 45020 63028 78785 157570 315140