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12879493 = 111170863
BaseRepresentation
bin110001001000…
…011010000101
3220020100100021
4301020122011
511244120433
61140015141
7214321354
oct61103205
926210307
1012879493
1172a7610
1243914b1
13288c403
1419d399b
1511e622d
hexc48685

12879493 has 4 divisors (see below), whose sum is σ = 14050368. Its totient is φ = 11708620.

The previous prime is 12879487. The next prime is 12879497. The reversal of 12879493 is 39497821.

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.

It is not a de Polignac number, because 12879493 - 221 = 10782341 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 (12879497) 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, 585421 + ... + 585442.

It is an arithmetic number, because the mean of its divisors is an integer number (3512592).

Almost surely, 212879493 is an apocalyptic number.

It is an amenable number.

12879493 is a deficient number, since it is larger than the sum of its proper divisors (1170875).

12879493 is a wasteful number, since it uses less digits than its factorization.

12879493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170874.

The product of its digits is 108864, while the sum is 43.

The square root of 12879493 is about 3588.8010532767. The cubic root of 12879493 is about 234.4046678414.

The spelling of 12879493 in words is "twelve million, eight hundred seventy-nine thousand, four hundred ninety-three".

Divisors: 1 11 1170863 12879493