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13279713 = 34426571
BaseRepresentation
bin110010101010…
…000111100001
3220222200100020
4302222013201
511344422323
61152344053
7220606236
oct62520741
926880306
1013279713
117550277
124545029
13299c625
141a9978d
151274ae3
hexcaa1e1

13279713 has 4 divisors (see below), whose sum is σ = 17706288. Its totient is φ = 8853140.

The previous prime is 13279711. The next prime is 13279729. The reversal of 13279713 is 31797231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13279713 - 21 = 13279711 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13279711) 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, 2213283 + ... + 2213288.

It is an arithmetic number, because the mean of its divisors is an integer number (4426572).

Almost surely, 213279713 is an apocalyptic number.

It is an amenable number.

13279713 is a deficient number, since it is larger than the sum of its proper divisors (4426575).

13279713 is an equidigital number, since it uses as much as digits as its factorization.

13279713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426574.

The product of its digits is 7938, while the sum is 33.

The square root of 13279713 is about 3644.1340535167. The cubic root of 13279713 is about 236.8079235635.

The spelling of 13279713 in words is "thirteen million, two hundred seventy-nine thousand, seven hundred thirteen".

Divisors: 1 3 4426571 13279713