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13974879 = 39474919
BaseRepresentation
bin110101010011…
…110101011111
3222021222221010
4311103311133
512034144004
61215310303
7226533042
oct65236537
928258833
1013974879
117985596
12481b393
132b83b79
141bdac59
151360a89
hexd53d5f

13974879 has 8 divisors (see below), whose sum is σ = 18656640. Its totient is φ = 9304856.

The previous prime is 13974827. The next prime is 13974911. The reversal of 13974879 is 97847931.

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

It is a cyclic number.

It is not a de Polignac number, because 13974879 - 211 = 13972831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13974679) 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, 382 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (2332080).

Almost surely, 213974879 is an apocalyptic number.

13974879 is a deficient number, since it is larger than the sum of its proper divisors (4681761).

13974879 is an equidigital number, since it uses as much as digits as its factorization.

13974879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869.

The product of its digits is 381024, while the sum is 48.

The square root of 13974879 is about 3738.2989447073. The cubic root of 13974879 is about 240.8699849099.

The spelling of 13974879 in words is "thirteen million, nine hundred seventy-four thousand, eight hundred seventy-nine".

Divisors: 1 3 947 2841 4919 14757 4658293 13974879