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13793904 = 243295791
BaseRepresentation
bin110100100111…
…101001110000
3221221210200100
4310213221300
512012401104
61211352400
7225150315
oct64475160
927853610
1013793904
117871623
124752700
132b1c697
141b90d0c
151327139
hexd27a70

13793904 has 30 divisors (see below), whose sum is σ = 38604176. Its totient is φ = 4597920.

The previous prime is 13793891. The next prime is 13793909. The reversal of 13793904 is 40939731.

13793904 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137939042 = 380543575122432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (13793909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47752 + ... + 48039.

Almost surely, 213793904 is an apocalyptic number.

It is an amenable number.

13793904 is an abundant number, since it is smaller than the sum of its proper divisors (24810272).

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

13793904 is a wasteful number, since it uses less digits than its factorization.

13793904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95805 (or 95796 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13793904 is about 3714.0145395515. The cubic root of 13793904 is about 239.8257067885.

The spelling of 13793904 in words is "thirteen million, seven hundred ninety-three thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 95791 191582 287373 383164 574746 766328 862119 1149492 1532656 1724238 2298984 3448476 4597968 6896952 13793904