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13613041 = 131047157
BaseRepresentation
bin110011111011…
…011111110001
3221121121120201
4303323133301
511441104131
61203435201
7223465111
oct63733761
927547521
1013613041
117758752
124685b01
132a88270
141b45041
1512dd761
hexcfb7f1

13613041 has 4 divisors (see below), whose sum is σ = 14660212. Its totient is φ = 12565872.

The previous prime is 13613029. The next prime is 13613051. The reversal of 13613041 is 14031631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3500641 + 10112400 = 1871^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13613041 - 223 = 5224433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13613021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523566 + ... + 523591.

It is an arithmetic number, because the mean of its divisors is an integer number (3665053).

Almost surely, 213613041 is an apocalyptic number.

It is an amenable number.

13613041 is a deficient number, since it is larger than the sum of its proper divisors (1047171).

13613041 is a wasteful number, since it uses less digits than its factorization.

13613041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047170.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 13613041 is about 3689.5854780720. The cubic root of 13613041 is about 238.7729091802.

Adding to 13613041 its reverse (14031631), we get a palindrome (27644672).

The spelling of 13613041 in words is "thirteen million, six hundred thirteen thousand, forty-one".

Divisors: 1 13 1047157 13613041