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13886212 = 2217533853
BaseRepresentation
bin110100111110…
…001100000100
3222010111022011
4310332030010
512023324322
61213344004
7226013404
oct64761404
928114264
1013886212
117924a0a
124798004
132b526c2
141bb6804
151344677
hexd3e304

13886212 has 24 divisors (see below), whose sum is σ = 26222616. Its totient is φ = 6409728.

The previous prime is 13886209. The next prime is 13886221. The reversal of 13886212 is 21268831.

It can be written as a sum of positive squares in 4 ways, for example, as 9821956 + 4064256 = 3134^2 + 2016^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1678 + ... + 5530.

It is an arithmetic number, because the mean of its divisors is an integer number (1092609).

Almost surely, 213886212 is an apocalyptic number.

It is an amenable number.

13886212 is a deficient number, since it is larger than the sum of its proper divisors (12336404).

13886212 is a wasteful number, since it uses less digits than its factorization.

13886212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927 (or 3925 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 13886212 is about 3726.4208028616. The cubic root of 13886212 is about 240.3594844249.

The spelling of 13886212 in words is "thirteen million, eight hundred eighty-six thousand, two hundred twelve".

Divisors: 1 2 4 17 34 53 68 106 212 901 1802 3604 3853 7706 15412 65501 131002 204209 262004 408418 816836 3471553 6943106 13886212