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13689755 = 53188321
BaseRepresentation
bin110100001110…
…001110011011
3221202111210222
4310032032123
512001033010
61205230255
7224234552
oct64161633
927674728
1013689755
117800352
12470238b
132ab4161
141b64d99
151306355
hexd0e39b

13689755 has 8 divisors (see below), whose sum is σ = 16957824. Its totient is φ = 10598400.

The previous prime is 13689749. The next prime is 13689773. The reversal of 13689755 is 55798631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13689755 - 26 = 13689691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 44006 + ... + 44315.

It is an arithmetic number, because the mean of its divisors is an integer number (2119728).

Almost surely, 213689755 is an apocalyptic number.

13689755 is a deficient number, since it is larger than the sum of its proper divisors (3268069).

13689755 is an equidigital number, since it uses as much as digits as its factorization.

13689755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88357.

The product of its digits is 226800, while the sum is 44.

The square root of 13689755 is about 3699.9668917438. The cubic root of 13689755 is about 239.2205907917.

The spelling of 13689755 in words is "thirteen million, six hundred eighty-nine thousand, seven hundred fifty-five".

Divisors: 1 5 31 155 88321 441605 2737951 13689755