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13613901 = 371135737
BaseRepresentation
bin110011111011…
…101101001101
3221121122202120
4303323231031
511441121101
61203443153
7223500450
oct63735515
927548676
1013613901
117759364
1246864b9
132a88782
141b45497
1512ddb36
hexcfbb4d

13613901 has 16 divisors (see below), whose sum is σ = 20932224. Its totient is φ = 7709184.

The previous prime is 13613893. The next prime is 13613911. The reversal of 13613901 is 10931631.

It is not a de Polignac number, because 13613901 - 23 = 13613893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (1308264).

Almost surely, 213613901 is an apocalyptic number.

It is an amenable number.

13613901 is a deficient number, since it is larger than the sum of its proper divisors (7318323).

13613901 is a wasteful number, since it uses less digits than its factorization.

13613901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 13613901 is about 3689.7020204889. The cubic root of 13613901 is about 238.7779372112. Note that the first 3 decimals are identical.

The spelling of 13613901 in words is "thirteen million, six hundred thirteen thousand, nine hundred one".

Divisors: 1 3 7 21 113 339 791 2373 5737 17211 40159 120477 648281 1944843 4537967 13613901