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13904793 = 3271712983
BaseRepresentation
bin110101000010…
…101110011001
3222011102210100
4311002232121
512024423133
61214010013
7226121520
oct65025631
928142710
1013904793
117937971
1247a6909
132b5acb6
141bbd4b7
151349e13
hexd42b99

13904793 has 24 divisors (see below), whose sum is σ = 24306048. Its totient is φ = 7477632.

The previous prime is 13904791. The next prime is 13904797. The reversal of 13904793 is 39740931.

13904793 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13904793 - 21 = 13904791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13904791) 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, 5421 + ... + 7562.

It is an arithmetic number, because the mean of its divisors is an integer number (1012752).

Almost surely, 213904793 is an apocalyptic number.

It is an amenable number.

13904793 is a deficient number, since it is larger than the sum of its proper divisors (10401255).

13904793 is a wasteful number, since it uses less digits than its factorization.

13904793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13013 (or 13010 counting only the distinct ones).

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

The square root of 13904793 is about 3728.9131124230. The cubic root of 13904793 is about 240.4666441753.

The spelling of 13904793 in words is "thirteen million, nine hundred four thousand, seven hundred ninety-three".

Divisors: 1 3 7 9 17 21 51 63 119 153 357 1071 12983 38949 90881 116847 220711 272643 662133 817929 1544977 1986399 4634931 13904793