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12672523 = 83152681
BaseRepresentation
bin110000010101…
…111000001011
3212211211102201
4300111320023
511221010043
61131341031
7212500063
oct60257013
925754381
1012672523
117176066
1242b1777
132819146
14197c3a3
1511a4c4d
hexc15e0b

12672523 has 4 divisors (see below), whose sum is σ = 12825288. Its totient is φ = 12519760.

The previous prime is 12672509. The next prime is 12672529. The reversal of 12672523 is 32527621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12672523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12672491 and 12672500.

It is not an unprimeable number, because it can be changed into a prime (12672529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76258 + ... + 76423.

It is an arithmetic number, because the mean of its divisors is an integer number (3206322).

Almost surely, 212672523 is an apocalyptic number.

12672523 is a deficient number, since it is larger than the sum of its proper divisors (152765).

12672523 is an equidigital number, since it uses as much as digits as its factorization.

12672523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152764.

The product of its digits is 5040, while the sum is 28.

The square root of 12672523 is about 3559.8487327413. The cubic root of 12672523 is about 233.1422746653.

The spelling of 12672523 in words is "twelve million, six hundred seventy-two thousand, five hundred twenty-three".

Divisors: 1 83 152681 12672523