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12935655868 = 2221311517557
BaseRepresentation
bin11000000110000011…
…00111000110111100
31020101111201101220111
430003001213012330
5202443011441433
65535331555404
7635362155262
oct140301470674
936344641814
1012935655868
115538927793
12261015bb64
1312b1c63655
148a9dba432
1550a991dcd
hex3030671bc

12935655868 has 12 divisors (see below), whose sum is σ = 22648035592. Its totient is φ = 6464788560.

The previous prime is 12935655847. The next prime is 12935655881. The reversal of 12935655868 is 86855653921.

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, 750255 + ... + 767302.

Almost surely, 212935655868 is an apocalyptic number.

It is an amenable number.

12935655868 is a deficient number, since it is larger than the sum of its proper divisors (9712379724).

12935655868 is a wasteful number, since it uses less digits than its factorization.

12935655868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519692 (or 1519690 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 58.

The spelling of 12935655868 in words is "twelve billion, nine hundred thirty-five million, six hundred fifty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 2131 4262 8524 1517557 3035114 6070228 3233913967 6467827934 12935655868