Search a number
-
+
12907652528 = 243126023493
BaseRepresentation
bin11000000010101101…
…10010010110110000
31020022120000200112202
430001112302112300
5202413324340103
65532451442332
7634602144011
oct140126622660
936276020482
1012907652528
115524040431
1226028b63a8
1312a920a424
148a63ab008
155082ae988
hex3015b25b0

12907652528 has 20 divisors (see below), whose sum is σ = 25815306048. Its totient is φ = 6245638080.

The previous prime is 12907652491. The next prime is 12907652531. The reversal of 12907652528 is 82525670921.

It is a happy number.

12907652528 is an admirable 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, 13011251 + ... + 13012242.

Almost surely, 212907652528 is an apocalyptic number.

It is an amenable number.

12907652528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12907652528 is a wasteful number, since it uses less digits than its factorization.

12907652528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26023532 (or 26023526 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 12907652528 in words is "twelve billion, nine hundred seven million, six hundred fifty-two thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 26023493 52046986 104093972 208187944 416375888 806728283 1613456566 3226913132 6453826264 12907652528