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12657079 = 292411811
BaseRepresentation
bin110000010010…
…000110110111
3212211001020201
4300102012313
511220011304
61131141331
7212404051
oct60220667
925731221
1012657079
1171654a6
1242a4847
1328120c6
1419768d1
1511a03a4
hexc121b7

12657079 has 8 divisors (see below), whose sum is σ = 13155120. Its totient is φ = 12163200.

The previous prime is 12657077. The next prime is 12657091. The reversal of 12657079 is 97075621.

12657079 is digitally balanced in base 3, 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 12657079 - 21 = 12657077 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 (12657077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6084 + ... + 7894.

It is an arithmetic number, because the mean of its divisors is an integer number (1644390).

Almost surely, 212657079 is an apocalyptic number.

12657079 is a deficient number, since it is larger than the sum of its proper divisors (498041).

12657079 is a wasteful number, since it uses less digits than its factorization.

12657079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12657079 is about 3557.6788781451. The cubic root of 12657079 is about 233.0475260246.

The spelling of 12657079 in words is "twelve million, six hundred fifty-seven thousand, seventy-nine".

Divisors: 1 29 241 1811 6989 52519 436451 12657079