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13977000415 = 571728183597
BaseRepresentation
bin11010000010001100…
…00001100111011111
31100002002012012002001
431001012001213133
5212111103003130
610230531343131
71003235354230
oct150106014737
940062165061
1013977000415
115a2271a314
122860a51aa7
131419918361
1496840b087
1556c0dd6ca
hex3411819df

13977000415 has 32 divisors (see below), whose sum is σ = 20368485504. Its totient is φ = 8988241920.

The previous prime is 13977000377. The next prime is 13977000421. The reversal of 13977000415 is 51400077931.

13977000415 is a nontrivial binomial coefficient, being equal to C(167195, 2).

It is not a de Polignac number, because 13977000415 - 29 = 13976999903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125397 + ... + 208993.

It is an arithmetic number, because the mean of its divisors is an integer number (636515172).

Almost surely, 213977000415 is an apocalyptic number.

13977000415 is the 167194-th triangular number.

13977000415 is the 55732-nd centered nonagonal number.

13977000415 is a deficient number, since it is larger than the sum of its proper divisors (6391485089).

13977000415 is a wasteful number, since it uses less digits than its factorization.

13977000415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83907.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 13977000415 in words is "thirteen billion, nine hundred seventy-seven million, four hundred fifteen", and thus it is an aban number.

Divisors: 1 5 7 17 35 85 119 281 595 1405 1967 4777 9835 23885 33439 83597 167195 417985 585179 1421149 2925895 7105745 9948043 23490757 49740215 117453785 164435299 399342869 822176495 1996714345 2795400083 13977000415