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13796979 = 372175521
BaseRepresentation
bin110100101000…
…011001110011
3221221221220020
4310220121303
512013000404
61211414523
7225162300
oct64503163
927857806
1013796979
117873969
124754443
132b20bc1
141b920a7
151327ed9
hexd28673

13796979 has 24 divisors (see below), whose sum is σ = 22662288. Its totient is φ = 7418880.

The previous prime is 13796977. The next prime is 13797019. The reversal of 13796979 is 97969731.

13796979 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 not a de Polignac number, because 13796979 - 21 = 13796977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13796977) 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, 262 + ... + 5259.

It is an arithmetic number, because the mean of its divisors is an integer number (944262).

Almost surely, 213796979 is an apocalyptic number.

13796979 is a deficient number, since it is larger than the sum of its proper divisors (8865309).

13796979 is a wasteful number, since it uses less digits than its factorization.

13796979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555 (or 5548 counting only the distinct ones).

The product of its digits is 642978, while the sum is 51.

The square root of 13796979 is about 3714.4284890142. The cubic root of 13796979 is about 239.8435264779.

The spelling of 13796979 in words is "thirteen million, seven hundred ninety-six thousand, nine hundred seventy-nine".

Divisors: 1 3 7 17 21 49 51 119 147 357 833 2499 5521 16563 38647 93857 115941 270529 281571 656999 811587 1970997 4598993 13796979