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12906724444 = 2210929602579
BaseRepresentation
bin11000000010100110…
…01111110001011100
31020022111021112110021
430001103033301130
5202413110140234
65532415521524
7634561230145
oct140123176134
936274245407
1012906724444
115523567119
1226025292a4
1312a8c73b73
148a6208acc
155081799b4
hex3014cfc5c

12906724444 has 12 divisors (see below), whose sum is σ = 22793986600. Its totient is φ = 6394156848.

The previous prime is 12906724429. The next prime is 12906724471. The reversal of 12906724444 is 44442760921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12906724444.

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, 14800854 + ... + 14801725.

Almost surely, 212906724444 is an apocalyptic number.

It is an amenable number.

12906724444 is a deficient number, since it is larger than the sum of its proper divisors (9887262156).

12906724444 is a wasteful number, since it uses less digits than its factorization.

12906724444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29602692 (or 29602690 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 12906724444 in words is "twelve billion, nine hundred six million, seven hundred twenty-four thousand, four hundred forty-four".

Divisors: 1 2 4 109 218 436 29602579 59205158 118410316 3226681111 6453362222 12906724444