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12713135 = 523227487
BaseRepresentation
bin110000011111…
…110010101111
3212220220010212
4300133302233
511223310020
61132253035
7213026351
oct60376257
925826125
1012713135
1171a3626
12431117b
132831786
14198d0d1
1511b1cc5
hexc1fcaf

12713135 has 16 divisors (see below), whose sum is σ = 16022016. Its totient is φ = 9665568.

The previous prime is 12713123. The next prime is 12713137. The reversal of 12713135 is 53131721.

It is a cyclic number.

It is not a de Polignac number, because 12713135 - 24 = 12713119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 12713135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713137) 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, 25862 + ... + 26348.

It is an arithmetic number, because the mean of its divisors is an integer number (1001376).

Almost surely, 212713135 is an apocalyptic number.

12713135 is a deficient number, since it is larger than the sum of its proper divisors (3308881).

12713135 is a wasteful number, since it uses less digits than its factorization.

12713135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742.

The product of its digits is 630, while the sum is 23.

The square root of 12713135 is about 3565.5483449254. The cubic root of 12713135 is about 233.3910616801.

Adding to 12713135 its reverse (53131721), we get a palindrome (65844856).

The spelling of 12713135 in words is "twelve million, seven hundred thirteen thousand, one hundred thirty-five".

Divisors: 1 5 23 115 227 487 1135 2435 5221 11201 26105 56005 110549 552745 2542627 12713135