Search a number
-
+
315130 = 2531513
BaseRepresentation
bin1001100111011111010
3121000021111
41030323322
540041010
610430534
72451514
oct1147372
9530244
10315130
111a5842
1213244a
13b058a
1482bb4
156358a
hex4cefa

315130 has 8 divisors (see below), whose sum is σ = 567252. Its totient is φ = 126048.

The previous prime is 315127. The next prime is 315179. The reversal of 315130 is 31513.

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 58081 = 507^2 + 241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 315130.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15747 + ... + 15766.

2315130 is an apocalyptic number.

315130 is a deficient number, since it is larger than the sum of its proper divisors (252122).

315130 is a wasteful number, since it uses less digits than its factorization.

315130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31520.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 315130 is about 561.3644092744. The cubic root of 315130 is about 68.0502799989.

Adding to 315130 its reverse (31513), we get a palindrome (346643).

The spelling of 315130 in words is "three hundred fifteen thousand, one hundred thirty".

Divisors: 1 2 5 10 31513 63026 157565 315130