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13397849976 = 233779749107
BaseRepresentation
bin11000111101001001…
…01111011101111000
31021120201102022000210
430132210233131320
5204414322144401
610053242231120
7653003563050
oct143644573570
937521368023
1013397849976
115755811a95
12271aab54a0
13135693c7a4
14911530560
1553633d4d6
hex31e92f778

13397849976 has 32 divisors (see below), whose sum is σ = 38279571840. Its totient is φ = 3827957088.

The previous prime is 13397849947. The next prime is 13397850013. The reversal of 13397849976 is 67994879331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39874386 + ... + 39874721.

It is an arithmetic number, because the mean of its divisors is an integer number (1196236620).

Almost surely, 213397849976 is an apocalyptic number.

It is an amenable number.

13397849976 is an abundant number, since it is smaller than the sum of its proper divisors (24881721864).

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

13397849976 is a wasteful number, since it uses less digits than its factorization.

13397849976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79749123 (or 79749119 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 66.

The spelling of 13397849976 in words is "thirteen billion, three hundred ninety-seven million, eight hundred forty-nine thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 79749107 159498214 239247321 318996428 478494642 558243749 637992856 956989284 1116487498 1674731247 1913978568 2232974996 3349462494 4465949992 6698924988 13397849976