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13901637764 = 2271576731489
BaseRepresentation
bin11001111001001101…
…00010100010000100
31022212211101100221202
430330212202202010
5211432304402024
610215240202032
71001331654110
oct147446424204
938784340852
1013901637764
115994126233
12283b769318
13140711c981
1495c3d0740
155656a3bae
hex33c9a2884

13901637764 has 24 divisors (see below), whose sum is σ = 27805921920. Its totient is φ = 5957277696.

The previous prime is 13901637731. The next prime is 13901637791. The reversal of 13901637764 is 46773610931.

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, 425732 + ... + 457220.

It is an arithmetic number, because the mean of its divisors is an integer number (1158580080).

Almost surely, 213901637764 is an apocalyptic number.

13901637764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13901637764 is an abundant number, since it is smaller than the sum of its proper divisors (13904284156).

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

13901637764 is a wasteful number, since it uses less digits than its factorization.

13901637764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47267 (or 47265 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 13901637764 in words is "thirteen billion, nine hundred one million, six hundred thirty-seven thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 28 15767 31489 31534 62978 63068 110369 125956 220423 220738 440846 441476 881692 496487063 992974126 1985948252 3475409441 6950818882 13901637764