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13239677 = 111203607
BaseRepresentation
bin110010100000…
…010101111101
3220220122102102
4302200111331
511342132202
61151434445
7220351433
oct62402575
926818372
1013239677
117523190
124525a25
132987339
141a88d53
151267d02
hexca057d

13239677 has 4 divisors (see below), whose sum is σ = 14443296. Its totient is φ = 12036060.

The previous prime is 13239671. The next prime is 13239691. The reversal of 13239677 is 77693231.

13239677 is digitally balanced in base 2, 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 13239677 - 26 = 13239613 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 13239677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13239671) 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, 601793 + ... + 601814.

It is an arithmetic number, because the mean of its divisors is an integer number (3610824).

Almost surely, 213239677 is an apocalyptic number.

It is an amenable number.

13239677 is a deficient number, since it is larger than the sum of its proper divisors (1203619).

13239677 is a wasteful number, since it uses less digits than its factorization.

13239677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203618.

The product of its digits is 47628, while the sum is 38.

The square root of 13239677 is about 3638.6366952473. The cubic root of 13239677 is about 236.5697059226.

The spelling of 13239677 in words is "thirteen million, two hundred thirty-nine thousand, six hundred seventy-seven".

Divisors: 1 11 1203607 13239677