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12522013 = 717105227
BaseRepresentation
bin101111110001…
…001000011101
3212120011222021
4233301020131
511201201023
61124220141
7211302220
oct57611035
925504867
1012522013
117082a79
12423a651
13279579a
14193d5b7
15117535d
hexbf121d

12522013 has 8 divisors (see below), whose sum is σ = 15152832. Its totient is φ = 10101696.

The previous prime is 12522011. The next prime is 12522017. The reversal of 12522013 is 31022521.

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

It is a cyclic number.

It is not a de Polignac number, because 12522013 - 21 = 12522011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522011) by changing a digit.

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, 52495 + ... + 52732.

It is an arithmetic number, because the mean of its divisors is an integer number (1894104).

Almost surely, 212522013 is an apocalyptic number.

It is an amenable number.

12522013 is a deficient number, since it is larger than the sum of its proper divisors (2630819).

12522013 is a wasteful number, since it uses less digits than its factorization.

12522013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105251.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12522013 is about 3538.6456448760. The cubic root of 12522013 is about 232.2155955144.

Adding to 12522013 its reverse (31022521), we get a palindrome (43544534).

The spelling of 12522013 in words is "twelve million, five hundred twenty-two thousand, thirteen".

Divisors: 1 7 17 119 105227 736589 1788859 12522013