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13885868 = 2247233317
BaseRepresentation
bin110100111110…
…000110101100
3222010110211102
4310332012230
512023321433
61213342232
7226012403
oct64760654
928113742
1013885868
117924727
124797978
132b524b9
141bb663a
1513444e8
hexd3e1ac

13885868 has 24 divisors (see below), whose sum is σ = 25002432. Its totient is φ = 6744704.

The previous prime is 13885853. The next prime is 13885871. The reversal of 13885868 is 86858831.

It is a super-2 number, since 2×138858682 = 385634660226848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

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, 43646 + ... + 43962.

It is an arithmetic number, because the mean of its divisors is an integer number (1041768).

Almost surely, 213885868 is an apocalyptic number.

It is an amenable number.

13885868 is a deficient number, since it is larger than the sum of its proper divisors (11116564).

13885868 is a wasteful number, since it uses less digits than its factorization.

13885868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 599 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 13885868 is about 3726.3746456845. The cubic root of 13885868 is about 240.3574996181.

The spelling of 13885868 in words is "thirteen million, eight hundred eighty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 47 94 188 233 317 466 634 932 1268 10951 14899 21902 29798 43804 59596 73861 147722 295444 3471467 6942934 13885868