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13879933 = 107129719
BaseRepresentation
bin110100111100…
…101001111101
3222010011200121
4310330221331
512023124213
61213254541
7225656164
oct64745175
928104617
1013879933
117920221
124794451
132b4c8a2
141bb43db
15134288d
hexd3ca7d

13879933 has 4 divisors (see below), whose sum is σ = 14009760. Its totient is φ = 13750108.

The previous prime is 13879907. The next prime is 13879967. The reversal of 13879933 is 33997831.

13879933 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13879933 - 29 = 13879421 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 13879933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64753 + ... + 64966.

It is an arithmetic number, because the mean of its divisors is an integer number (3502440).

Almost surely, 213879933 is an apocalyptic number.

It is an amenable number.

13879933 is a deficient number, since it is larger than the sum of its proper divisors (129827).

13879933 is a wasteful number, since it uses less digits than its factorization.

13879933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129826.

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

The square root of 13879933 is about 3725.5782101575. The cubic root of 13879933 is about 240.3232507677.

The spelling of 13879933 in words is "thirteen million, eight hundred seventy-nine thousand, nine hundred thirty-three".

Divisors: 1 107 129719 13879933