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12508379 = 131756599
BaseRepresentation
bin101111101101…
…110011011011
3212112111021022
4233231303123
511200232004
61124033055
7211214402
oct57556333
925474238
1012508379
117073804
12423278b
13278c510
141938639
1511712be
hexbedcdb

12508379 has 8 divisors (see below), whose sum is σ = 14263200. Its totient is φ = 10866816.

The previous prime is 12508373. The next prime is 12508409. The reversal of 12508379 is 97380521.

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 12508379 - 28 = 12508123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12508373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28079 + ... + 28520.

It is an arithmetic number, because the mean of its divisors is an integer number (1782900).

Almost surely, 212508379 is an apocalyptic number.

12508379 is a deficient number, since it is larger than the sum of its proper divisors (1754821).

12508379 is a wasteful number, since it uses less digits than its factorization.

12508379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56629.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 12508379 is about 3536.7186769660. The cubic root of 12508379 is about 232.1312859287.

The spelling of 12508379 in words is "twelve million, five hundred eight thousand, three hundred seventy-nine".

Divisors: 1 13 17 221 56599 735787 962183 12508379