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12948239 = 29974603
BaseRepresentation
bin110001011001…
…001100001111
3220100211122102
4301121030033
511303320424
61141305315
7215025653
oct61311417
926324572
1012948239
117344227
12440523b
1328b47a5
141a10a63
15120b7ae
hexc5930f

12948239 has 8 divisors (see below), whose sum is σ = 13535760. Its totient is φ = 12370176.

The previous prime is 12948227. The next prime is 12948269. The reversal of 12948239 is 93284921.

12948239 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 a cyclic number.

It is not a de Polignac number, because 12948239 - 24 = 12948223 is a prime.

It is a super-2 number, since 2×129482392 = 335313786402242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948209) 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, 512 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (1691970).

Almost surely, 212948239 is an apocalyptic number.

12948239 is a deficient number, since it is larger than the sum of its proper divisors (587521).

12948239 is an equidigital number, since it uses as much as digits as its factorization.

12948239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729.

The product of its digits is 31104, while the sum is 38.

The square root of 12948239 is about 3598.3661570218. The cubic root of 12948239 is about 234.8209833265.

The spelling of 12948239 in words is "twelve million, nine hundred forty-eight thousand, two hundred thirty-nine".

Divisors: 1 29 97 2813 4603 133487 446491 12948239