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12252379 = 17370823
BaseRepresentation
bin101110101111…
…010011011011
3212001111002211
4232233103123
511114034004
61114335551
7206100136
oct56572333
925044084
1012252379
116a09437
12412a5b7
1326ccb39
1418ad21d
151120504
hexbaf4db

12252379 has 4 divisors (see below), whose sum is σ = 12323376. Its totient is φ = 12181384.

The previous prime is 12252349. The next prime is 12252389. The reversal of 12252379 is 97325221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12252379 - 213 = 12244187 is a prime.

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 Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12252379.

It is not an unprimeable number, because it can be changed into a prime (12252319) 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, 35239 + ... + 35584.

It is an arithmetic number, because the mean of its divisors is an integer number (3080844).

Almost surely, 212252379 is an apocalyptic number.

12252379 is a deficient number, since it is larger than the sum of its proper divisors (70997).

12252379 is an equidigital number, since it uses as much as digits as its factorization.

12252379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70996.

The product of its digits is 7560, while the sum is 31.

The square root of 12252379 is about 3500.3398406440. The cubic root of 12252379 is about 230.5367363961.

The spelling of 12252379 in words is "twelve million, two hundred fifty-two thousand, three hundred seventy-nine".

Divisors: 1 173 70823 12252379