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12879245 = 519135571
BaseRepresentation
bin110001001000…
…010110001101
3220020100000002
4301020112031
511244113440
61140014045
7214320551
oct61102615
926210002
1012879245
1172a7405
124391325
13288c272
1419d3861
1511e6115
hexc4858d

12879245 has 8 divisors (see below), whose sum is σ = 16268640. Its totient is φ = 9761040.

The previous prime is 12879239. The next prime is 12879247. The reversal of 12879245 is 54297821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12879245 - 28 = 12878989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12879199 and 12879208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67691 + ... + 67880.

It is an arithmetic number, because the mean of its divisors is an integer number (2033580).

Almost surely, 212879245 is an apocalyptic number.

It is an amenable number.

12879245 is a deficient number, since it is larger than the sum of its proper divisors (3389395).

12879245 is a wasteful number, since it uses less digits than its factorization.

12879245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135595.

The product of its digits is 40320, while the sum is 38.

The square root of 12879245 is about 3588.7665011812. The cubic root of 12879245 is about 234.4031633120.

The spelling of 12879245 in words is "twelve million, eight hundred seventy-nine thousand, two hundred forty-five".

Divisors: 1 5 19 95 135571 677855 2575849 12879245