Search a number
-
+
2120331208 = 236133712893
BaseRepresentation
bin111111001100001…
…1010111111001000
312110202202222121111
41332120122333020
513320301044313
6550222020104
7103354342432
oct17630327710
95422688544
102120331208
11998965246
124b2117634
1327a388c68
1416185d652
15c623143d
hex7e61afc8

2120331208 has 32 divisors (see below), whose sum is σ = 4053099960. Its totient is φ = 1039610880.

The previous prime is 2120331181. The next prime is 2120331223. The reversal of 2120331208 is 8021330212.

It can be written as a sum of positive squares in 4 ways, for example, as 1107691524 + 1012639684 = 33282^2 + 31822^2 .

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, 158010 + ... + 170902.

Almost surely, 22120331208 is an apocalyptic number.

It is an amenable number.

2120331208 is a deficient number, since it is larger than the sum of its proper divisors (1932768752).

2120331208 is a wasteful number, since it uses less digits than its factorization.

2120331208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297 (or 13293 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2120331208 is about 46047.0542814630. The cubic root of 2120331208 is about 1284.6985536443.

The spelling of 2120331208 in words is "two billion, one hundred twenty million, three hundred thirty-one thousand, two hundred eight".

Divisors: 1 2 4 8 61 122 244 337 488 674 1348 2696 12893 20557 25786 41114 51572 82228 103144 164456 786473 1572946 3145892 4344941 6291784 8689882 17379764 34759528 265041401 530082802 1060165604 2120331208