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12492079 = 15182729
BaseRepresentation
bin101111101001…
…110100101111
3212111122220121
4233221310233
511144221304
61123425411
7211116025
oct57516457
925448817
1012492079
117062536
124225267
132784c82
141932715
15116b554
hexbe9d2f

12492079 has 4 divisors (see below), whose sum is σ = 12574960. Its totient is φ = 12409200.

The previous prime is 12492061. The next prime is 12492089. The reversal of 12492079 is 97029421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97029421 = 175707613.

It is a cyclic number.

It is not a de Polignac number, because 12492079 - 211 = 12490031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492089) 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, 41214 + ... + 41515.

It is an arithmetic number, because the mean of its divisors is an integer number (3143740).

Almost surely, 212492079 is an apocalyptic number.

12492079 is a deficient number, since it is larger than the sum of its proper divisors (82881).

12492079 is an equidigital number, since it uses as much as digits as its factorization.

12492079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82880.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 12492079 is about 3534.4135298519. The cubic root of 12492079 is about 232.0304099555.

The spelling of 12492079 in words is "twelve million, four hundred ninety-two thousand, seventy-nine".

Divisors: 1 151 82729 12492079