Search a number
-
+
12925213 = 72963671
BaseRepresentation
bin110001010011…
…100100011101
3220022200001121
4301103210131
511302101323
61141010541
7214601560
oct61234435
926280047
1012925213
1173289a4
1243b3a51
1328a7172
141a064d7
151204a5d
hexc5391d

12925213 has 8 divisors (see below), whose sum is σ = 15281280. Its totient is φ = 10696560.

The previous prime is 12925207. The next prime is 12925223. The reversal of 12925213 is 31252921.

It is a happy number.

12925213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12925213 - 29 = 12924701 is a prime.

It is a super-2 number, since 2×129252132 = 334122262190738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12925223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31633 + ... + 32038.

It is an arithmetic number, because the mean of its divisors is an integer number (1910160).

Almost surely, 212925213 is an apocalyptic number.

It is an amenable number.

12925213 is a deficient number, since it is larger than the sum of its proper divisors (2356067).

12925213 is an equidigital number, since it uses as much as digits as its factorization.

12925213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63707.

The product of its digits is 1080, while the sum is 25.

The square root of 12925213 is about 3595.1652256885. The cubic root of 12925213 is about 234.6817057966.

The spelling of 12925213 in words is "twelve million, nine hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 7 29 203 63671 445697 1846459 12925213