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12404297 = 122910093
BaseRepresentation
bin101111010100…
…011001001001
3212100012111102
4233110121021
511133414142
61121511145
7210302063
oct57243111
925305442
1012404297
117002594
1241a24b5
132754029
14190c733
151150532
hexbd4649

12404297 has 4 divisors (see below), whose sum is σ = 12415620. Its totient is φ = 12392976.

The previous prime is 12404281. The next prime is 12404299. The reversal of 12404297 is 79240421.

12404297 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.

It can be written as a sum of positive squares in 2 ways, for example, as 10106041 + 2298256 = 3179^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404297 - 24 = 12404281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404299) 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, 3818 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (3103905).

Almost surely, 212404297 is an apocalyptic number.

It is an amenable number.

12404297 is a deficient number, since it is larger than the sum of its proper divisors (11323).

12404297 is a wasteful number, since it uses less digits than its factorization.

12404297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12404297 is about 3521.9734524837. The cubic root of 12404297 is about 231.4856383573.

The spelling of 12404297 in words is "twelve million, four hundred four thousand, two hundred ninety-seven".

Divisors: 1 1229 10093 12404297