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13879372 = 2213892999
BaseRepresentation
bin110100111100…
…100001001100
3222010010220211
4310330201030
512023114442
61213252204
7225654433
oct64744114
928103824
1013879372
11791a861
124794064
132b4c560
141bb411a
151342617
hexd3c84c

13879372 has 24 divisors (see below), whose sum is σ = 26460000. Its totient is φ = 6331776.

The previous prime is 13879357. The next prime is 13879379. The reversal of 13879372 is 27397831.

It is a super-2 number, since 2×138793722 = 385273934228768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13879379) by changing a digit.

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, 3129 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (1102500).

Almost surely, 213879372 is an apocalyptic number.

It is an amenable number.

13879372 is a deficient number, since it is larger than the sum of its proper divisors (12580628).

13879372 is a wasteful number, since it uses less digits than its factorization.

13879372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3103 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 13879372 is about 3725.5029190701. The cubic root of 13879372 is about 240.3200129240.

The spelling of 13879372 in words is "thirteen million, eight hundred seventy-nine thousand, three hundred seventy-two".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 2999 4628 5998 11996 38987 77974 155948 266911 533822 1067644 3469843 6939686 13879372