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12620288067 = 3137199154303
BaseRepresentation
bin10111100000011101…
…00101000001000011
31012120112022001121120
423300032211001003
5201321243204232
65444144323323
7624512451522
oct136016450103
935515261546
1012620288067
115396907242
122542613543
13126181499a
1487a1664b9
154dce4992c
hex2f03a5043

12620288067 has 16 divisors (see below), whose sum is σ = 17035161600. Its totient is φ = 8310088512.

The previous prime is 12620288039. The next prime is 12620288089. The reversal of 12620288067 is 76088202621.

It is a happy number.

It is not a de Polignac number, because 12620288067 - 223 = 12611899459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12620288267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4638 + ... + 158940.

It is an arithmetic number, because the mean of its divisors is an integer number (1064697600).

Almost surely, 212620288067 is an apocalyptic number.

12620288067 is a deficient number, since it is larger than the sum of its proper divisors (4414873533).

12620288067 is a wasteful number, since it uses less digits than its factorization.

12620288067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154642.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 12620288067 in words is "twelve billion, six hundred twenty million, two hundred eighty-eight thousand, sixty-seven".

Divisors: 1 3 137 199 411 597 27263 81789 154303 462909 21139511 30706297 63418533 92118891 4206762689 12620288067