Search a number
-
+
313230530 = 25375315973
BaseRepresentation
bin10010101010111…
…000010011000010
3210211101202111202
4102222320103002
51120141334110
651025341202
710522262354
oct2252702302
9724352452
10313230530
111508a0808
1288a97802
134cb80c12
142d8590d4
151c7740a5
hex12ab84c2

313230530 has 32 divisors (see below), whose sum is σ = 590015664. Its totient is φ = 119598336.

The previous prime is 313230527. The next prime is 313230569. The reversal of 313230530 is 35032313.

It can be written as a sum of positive squares in 8 ways, for example, as 268861609 + 44368921 = 16397^2 + 6661^2 .

It is a super-2 number, since 2×3132305302 = 196226729848161800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11624 + ... + 27596.

Almost surely, 2313230530 is an apocalyptic number.

313230530 is a deficient number, since it is larger than the sum of its proper divisors (276785134).

313230530 is a wasteful number, since it uses less digits than its factorization.

313230530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 313230530 is about 17698.3199767662. The cubic root of 313230530 is about 679.1327828998.

Adding to 313230530 its reverse (35032313), we get a palindrome (348262843).

The spelling of 313230530 in words is "three hundred thirteen million, two hundred thirty thousand, five hundred thirty".

Divisors: 1 2 5 10 37 53 74 106 185 265 370 530 1961 3922 9805 15973 19610 31946 79865 159730 591001 846569 1182002 1693138 2955005 4232845 5910010 8465690 31323053 62646106 156615265 313230530