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12379117 = 22435519
BaseRepresentation
bin101111001110…
…001111101101
3212021220221211
4233032033231
511132112432
61121154421
7210135502
oct57161755
925256854
1012379117
116a95683
12418ba11
13274572a
1419034a9
151147d47
hexbce3ed

12379117 has 4 divisors (see below), whose sum is σ = 12386880. Its totient is φ = 12371356.

The previous prime is 12379109. The next prime is 12379139. The reversal of 12379117 is 71197321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12379117 - 23 = 12379109 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (12379177) 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, 517 + ... + 5002.

It is an arithmetic number, because the mean of its divisors is an integer number (3096720).

Almost surely, 212379117 is an apocalyptic number.

It is an amenable number.

12379117 is a deficient number, since it is larger than the sum of its proper divisors (7763).

12379117 is an equidigital number, since it uses as much as digits as its factorization.

12379117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762.

The product of its digits is 2646, while the sum is 31.

The square root of 12379117 is about 3518.3969361060. The cubic root of 12379117 is about 231.3288981332.

The spelling of 12379117 in words is "twelve million, three hundred seventy-nine thousand, one hundred seventeen".

Divisors: 1 2243 5519 12379117