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13986604128 = 253720813399
BaseRepresentation
bin11010000011010101…
…01010010001100000
31100002202021002220010
431001222222101200
5212121032313003
610231513244520
71003413113340
oct150152522140
940082232803
1013986604128
115a28089772
122864103740
13141b8cb723
149697cad20
1556cd89003
hex341aaa460

13986604128 has 48 divisors (see below), whose sum is σ = 41959814400. Its totient is φ = 3996172416.

The previous prime is 13986604127. The next prime is 13986604153. The reversal of 13986604128 is 82140668931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986604127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10406028 + ... + 10407371.

It is an arithmetic number, because the mean of its divisors is an integer number (874162800).

Almost surely, 213986604128 is an apocalyptic number.

It is an amenable number.

13986604128 is an abundant number, since it is smaller than the sum of its proper divisors (27973210272).

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

13986604128 is a wasteful number, since it uses less digits than its factorization.

13986604128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20813419 (or 20813411 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 13986604128 in words is "thirteen billion, nine hundred eighty-six million, six hundred four thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 20813399 41626798 62440197 83253596 124880394 145693793 166507192 249760788 291387586 333014384 437081379 499521576 582775172 666028768 874162758 999043152 1165550344 1748325516 1998086304 2331100688 3496651032 4662201376 6993302064 13986604128