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12497929 = 31403159
BaseRepresentation
bin101111101011…
…010000001001
3212111221221021
4233223100021
511144413204
61123512441
7211142053
oct57532011
925457837
1012497929
117066974
124228721
132787832
1419348d3
15116d154
hexbeb409

12497929 has 4 divisors (see below), whose sum is σ = 12901120. Its totient is φ = 12094740.

The previous prime is 12497909. The next prime is 12497951. The reversal of 12497929 is 92979421.

12497929 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92979421 = 167556763.

It is a cyclic number.

It is not a de Polignac number, because 12497929 - 29 = 12497417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12497909) 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, 201549 + ... + 201610.

It is an arithmetic number, because the mean of its divisors is an integer number (3225280).

Almost surely, 212497929 is an apocalyptic number.

It is an amenable number.

12497929 is a deficient number, since it is larger than the sum of its proper divisors (403191).

12497929 is an equidigital number, since it uses as much as digits as its factorization.

12497929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403190.

The product of its digits is 81648, while the sum is 43.

The square root of 12497929 is about 3535.2410101717. The cubic root of 12497929 is about 232.0666239988.

The spelling of 12497929 in words is "twelve million, four hundred ninety-seven thousand, nine hundred twenty-nine".

Divisors: 1 31 403159 12497929