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13837138 = 27988367
BaseRepresentation
bin110100110010…
…001101010010
3222000222222121
4310302031102
512020242023
61212324454
7225420340
oct64621522
928028877
1013837138
1178a1057
12477372a
132b36273
141ba2990
151334d5d
hexd32352

13837138 has 8 divisors (see below), whose sum is σ = 23720832. Its totient is φ = 5930196.

The previous prime is 13837127. The next prime is 13837139. The reversal of 13837138 is 83173831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13837139) 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 3 ways as a sum of consecutive naturals, for example, 494170 + ... + 494197.

It is an arithmetic number, because the mean of its divisors is an integer number (2965104).

Almost surely, 213837138 is an apocalyptic number.

13837138 is a deficient number, since it is larger than the sum of its proper divisors (9883694).

13837138 is an equidigital number, since it uses as much as digits as its factorization.

13837138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988376.

The product of its digits is 12096, while the sum is 34.

The square root of 13837138 is about 3719.8303724767. The cubic root of 13837138 is about 240.0760060196.

The spelling of 13837138 in words is "thirteen million, eight hundred thirty-seven thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 988367 1976734 6918569 13837138