Search a number
-
+
12447230308 = 223111807577
BaseRepresentation
bin10111001011110100…
…11010100101100100
31012010110122210222221
423211322122211210
5200442442332213
65415043202124
7620311466122
oct134572324544
935113583887
1012447230308
1153081563a7
1224b4676344
131234a01946
14861198912
154ccb6338d
hex2e5e9a964

12447230308 has 6 divisors (see below), whose sum is σ = 21782653046. Its totient is φ = 6223615152.

The previous prime is 12447230291. The next prime is 12447230311. The reversal of 12447230308 is 80303274421.

It can be written as a sum of positive squares in only one way, i.e., 12172267584 + 274962724 = 110328^2 + 16582^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555903785 + ... + 1555903792.

Almost surely, 212447230308 is an apocalyptic number.

It is an amenable number.

12447230308 is a deficient number, since it is larger than the sum of its proper divisors (9335422738).

12447230308 is a wasteful number, since it uses less digits than its factorization.

12447230308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111807581 (or 3111807579 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 12447230308 in words is "twelve billion, four hundred forty-seven million, two hundred thirty thousand, three hundred eight".

Divisors: 1 2 4 3111807577 6223615154 12447230308