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13791764 = 227492563
BaseRepresentation
bin110100100111…
…001000010100
3221221200202002
4310213020110
512012314024
61211334432
7225141140
oct64471024
927850662
1013791764
11786aa58
124751418
132b1b70c
141b90220
1513266ae
hexd27214

13791764 has 12 divisors (see below), whose sum is σ = 27583584. Its totient is φ = 5910744.

The previous prime is 13791731. The next prime is 13791769. The reversal of 13791764 is 46719731.

13791764 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13791769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246254 + ... + 246309.

It is an arithmetic number, because the mean of its divisors is an integer number (2298632).

Almost surely, 213791764 is an apocalyptic number.

13791764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13791764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13791764 is a wasteful number, since it uses less digits than its factorization.

13791764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492574 (or 492572 counting only the distinct ones).

The product of its digits is 31752, while the sum is 38.

The square root of 13791764 is about 3713.7264304200. The cubic root of 13791764 is about 239.8133038807.

The spelling of 13791764 in words is "thirteen million, seven hundred ninety-one thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 28 492563 985126 1970252 3447941 6895882 13791764