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12825671 = 20636217
BaseRepresentation
bin110000111011…
…010001000111
3220010121111212
4300323101013
511240410141
61134522035
7214005425
oct60732107
926117455
1012825671
117270131
12436631b
132870a71
1419bc115
1511d52eb
hexc3b447

12825671 has 4 divisors (see below), whose sum is σ = 12833952. Its totient is φ = 12817392.

The previous prime is 12825647. The next prime is 12825679. The reversal of 12825671 is 17652821.

12825671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17652821 = 119314797.

It is a cyclic number.

It is not a de Polignac number, because 12825671 - 26 = 12825607 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 (12825679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046 + ... + 5171.

It is an arithmetic number, because the mean of its divisors is an integer number (3208488).

Almost surely, 212825671 is an apocalyptic number.

12825671 is a deficient number, since it is larger than the sum of its proper divisors (8281).

12825671 is an equidigital number, since it uses as much as digits as its factorization.

12825671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280.

The product of its digits is 6720, while the sum is 32.

The square root of 12825671 is about 3581.2945983261. The cubic root of 12825671 is about 234.0776947545.

The spelling of 12825671 in words is "twelve million, eight hundred twenty-five thousand, six hundred seventy-one".

Divisors: 1 2063 6217 12825671