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13383979 = 76912767
BaseRepresentation
bin110011000011…
…100100101011
3221011222100221
4303003210223
511411241404
61154510511
7221522230
oct63034453
927158327
1013383979
117611644
124595437
132a07c1b
141ac5787
151295954
hexcc392b

13383979 has 8 divisors (see below), whose sum is σ = 15323648. Its totient is φ = 11451240.

The previous prime is 13383967. The next prime is 13383991. The reversal of 13383979 is 97938331.

13383979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13383967) and next prime (13383991).

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 13383979 - 211 = 13381931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13383379) 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, 3454 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (1915456).

Almost surely, 213383979 is an apocalyptic number.

13383979 is a deficient number, since it is larger than the sum of its proper divisors (1939669).

13383979 is an equidigital number, since it uses as much as digits as its factorization.

13383979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465.

The product of its digits is 122472, while the sum is 43.

The square root of 13383979 is about 3658.4120872313. The cubic root of 13383979 is about 237.4260763467.

The spelling of 13383979 in words is "thirteen million, three hundred eighty-three thousand, nine hundred seventy-nine".

Divisors: 1 7 691 2767 4837 19369 1911997 13383979