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12879423 = 321431047
BaseRepresentation
bin110001001000…
…011000111111
3220020100020200
4301020120333
511244120143
61140014543
7214321224
oct61103077
926210220
1012879423
1172a7557
124391453
13288c37b
1419d394b
1511e61d3
hexc4863f

12879423 has 6 divisors (see below), whose sum is σ = 18603624. Its totient is φ = 8586276.

The previous prime is 12879409. The next prime is 12879437. The reversal of 12879423 is 32497821.

12879423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12879409) and next prime (12879437).

It is not a de Polignac number, because 12879423 - 24 = 12879407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715515 + ... + 715532.

It is an arithmetic number, because the mean of its divisors is an integer number (3100604).

Almost surely, 212879423 is an apocalyptic number.

12879423 is a deficient number, since it is larger than the sum of its proper divisors (5724201).

12879423 is a wasteful number, since it uses less digits than its factorization.

12879423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431053 (or 1431050 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12879423 is about 3588.7913007028. The cubic root of 12879423 is about 234.4042431778.

The spelling of 12879423 in words is "twelve million, eight hundred seventy-nine thousand, four hundred twenty-three".

Divisors: 1 3 9 1431047 4293141 12879423