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13230679 = 711171827
BaseRepresentation
bin110010011110…
…001001010111
3220220012002011
4302132021113
511341340204
61151325051
7220313260
oct62361127
926805064
1013230679
117517450
124520787
132983207
141a85967
151265304
hexc9e257

13230679 has 8 divisors (see below), whose sum is σ = 16495488. Its totient is φ = 10309560.

The previous prime is 13230677. The next prime is 13230689. The reversal of 13230679 is 97603231.

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 13230679 - 21 = 13230677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13230679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85837 + ... + 85990.

It is an arithmetic number, because the mean of its divisors is an integer number (2061936).

Almost surely, 213230679 is an apocalyptic number.

13230679 is a deficient number, since it is larger than the sum of its proper divisors (3264809).

13230679 is a wasteful number, since it uses less digits than its factorization.

13230679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171845.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 13230679 is about 3637.4000329906. The cubic root of 13230679 is about 236.5161009737.

The spelling of 13230679 in words is "thirteen million, two hundred thirty thousand, six hundred seventy-nine".

Divisors: 1 7 11 77 171827 1202789 1890097 13230679