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13706879 = 172927803
BaseRepresentation
bin110100010010…
…011001111111
3221210101022012
4310102121333
512002110004
61205441435
7224335514
oct64223177
927711265
1013706879
1178121aa
12471027b
132abbba4
141b6b30b
15130b46e
hexd1267f

13706879 has 8 divisors (see below), whose sum is σ = 15014160. Its totient is φ = 12455296.

The previous prime is 13706851. The next prime is 13706881. The reversal of 13706879 is 97860731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13706879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13706839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13409 + ... + 14394.

It is an arithmetic number, because the mean of its divisors is an integer number (1876770).

Almost surely, 213706879 is an apocalyptic number.

13706879 is a deficient number, since it is larger than the sum of its proper divisors (1307281).

13706879 is a wasteful number, since it uses less digits than its factorization.

13706879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27849.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 13706879 is about 3702.2802433095. The cubic root of 13706879 is about 239.3202932472.

The spelling of 13706879 in words is "thirteen million, seven hundred six thousand, eight hundred seventy-nine".

Divisors: 1 17 29 493 27803 472651 806287 13706879