Search a number
-
+
12345108884 = 2219429158849
BaseRepresentation
bin10110111111101001…
…10110100110010100
31011212100111111201222
423133310312212110
5200240321441014
65400554305512
7614631460043
oct133764664624
934770444658
1012345108884
115265546029
122486428298
1312197c7674
148517b455a
154c3be008e
hex2dfd36994

12345108884 has 12 divisors (see below), whose sum is σ = 21605188500. Its totient is φ = 6172197888.

The previous prime is 12345108871. The next prime is 12345108911. The reversal of 12345108884 is 48880154321.

It can be written as a sum of positive squares in 2 ways, for example, as 85747600 + 12259361284 = 9260^2 + 110722^2 .

It is a congruent number.

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, 1709 + ... + 157140.

It is an arithmetic number, because the mean of its divisors is an integer number (1800432375).

Almost surely, 212345108884 is an apocalyptic number.

It is an amenable number.

12345108884 is a deficient number, since it is larger than the sum of its proper divisors (9260079616).

12345108884 is a wasteful number, since it uses less digits than its factorization.

12345108884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178282 (or 178280 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The spelling of 12345108884 in words is "twelve billion, three hundred forty-five million, one hundred eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 19429 38858 77716 158849 317698 635396 3086277221 6172554442 12345108884