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12404974 = 26202487
BaseRepresentation
bin101111010100…
…100011101110
3212100020102111
4233110203232
511133424344
61121514234
7210304051
oct57244356
925306374
1012404974
11700304a
1241a297a
13275442a
14190ca98
151150834
hexbd48ee

12404974 has 4 divisors (see below), whose sum is σ = 18607464. Its totient is φ = 6202486.

The previous prime is 12404971. The next prime is 12404989. The reversal of 12404974 is 47940421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47940421 = 157305353.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3101242 + ... + 3101245.

It is an arithmetic number, because the mean of its divisors is an integer number (4651866).

Almost surely, 212404974 is an apocalyptic number.

12404974 is a deficient number, since it is larger than the sum of its proper divisors (6202490).

12404974 is an equidigital number, since it uses as much as digits as its factorization.

12404974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202489.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12404974 is about 3522.0695620615. The cubic root of 12404974 is about 231.4898496110.

The spelling of 12404974 in words is "twelve million, four hundred four thousand, nine hundred seventy-four".

Divisors: 1 2 6202487 12404974