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13986108 = 223514389
BaseRepresentation
bin110101010110…
…100100111100
3222022120100000
4311112210330
512040023413
61215434300
7226610553
oct65264474
928276300
1013986108
117992a74
124825990
132b89006
141c00d9a
151364073
hexd5693c

13986108 has 36 divisors (see below), whose sum is σ = 36665720. Its totient is φ = 4661712.

The previous prime is 13986107. The next prime is 13986113. The reversal of 13986108 is 80168931.

13986108 is a `hidden beast` number, since 1 + 39 + 8 + 610 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×139861082 = 391222433975328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986103) 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 11 ways as a sum of consecutive naturals, for example, 6223 + ... + 8166.

Almost surely, 213986108 is an apocalyptic number.

13986108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13986108 is an abundant number, since it is smaller than the sum of its proper divisors (22679612).

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

13986108 is a wasteful number, since it uses less digits than its factorization.

13986108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408 (or 14394 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 13986108 is about 3739.8005294400. The cubic root of 13986108 is about 240.9344817106.

The spelling of 13986108 in words is "thirteen million, nine hundred eighty-six thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 14389 28778 43167 57556 86334 129501 172668 259002 388503 518004 777006 1165509 1554012 2331018 3496527 4662036 6993054 13986108