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13856105 = 517243223
BaseRepresentation
bin110100110110…
…110101101001
3222001222000002
4310312311221
512021343410
61212552345
7225526544
oct64666551
928058002
1013856105
11790432a
1247826b5
132b41aa3
141ba985b
15133a7a5
hexd36d69

13856105 has 24 divisors (see below), whose sum is σ = 18154752. Its totient is φ = 10144512.

The previous prime is 13856083. The next prime is 13856107. The reversal of 13856105 is 50165831.

It is not a de Polignac number, because 13856105 - 218 = 13593961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13856107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62024 + ... + 62246.

It is an arithmetic number, because the mean of its divisors is an integer number (756448).

Almost surely, 213856105 is an apocalyptic number.

It is an amenable number.

13856105 is a deficient number, since it is larger than the sum of its proper divisors (4298647).

13856105 is a wasteful number, since it uses less digits than its factorization.

13856105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 13856105 is about 3722.3789436327. The cubic root of 13856105 is about 240.1856491803.

The spelling of 13856105 in words is "thirteen million, eight hundred fifty-six thousand, one hundred five".

Divisors: 1 5 17 43 85 215 223 289 731 1115 1445 3655 3791 9589 12427 18955 47945 62135 64447 163013 322235 815065 2771221 13856105