Search a number
-
+
18379974362 = 210984311809
BaseRepresentation
bin10001000111100010…
…000010011011011010
31202102221011102212012
4101013202002123122
5300120233134422
612235454345522
71220321130041
oct210742023332
952387142765
1018379974362
11788201a862
12368b4bb2a2
13196bb7cb99
14c6509b558
157289134e2
hex4478826da

18379974362 has 8 divisors (see below), whose sum is σ = 27822897300. Its totient is φ = 9105675264.

The previous prime is 18379974329. The next prime is 18379974373. The reversal of 18379974362 is 26347997381.

It can be written as a sum of positive squares in 2 ways, for example, as 18227970121 + 152004241 = 135011^2 + 12329^2 .

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

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, 42155687 + ... + 42156122.

Almost surely, 218379974362 is an apocalyptic number.

18379974362 is a deficient number, since it is larger than the sum of its proper divisors (9442922938).

18379974362 is a wasteful number, since it uses less digits than its factorization.

18379974362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84311920.

The product of its digits is 13716864, while the sum is 59.

The spelling of 18379974362 in words is "eighteen billion, three hundred seventy-nine million, nine hundred seventy-four thousand, three hundred sixty-two".

Divisors: 1 2 109 218 84311809 168623618 9189987181 18379974362