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12872444 = 2213247547
BaseRepresentation
bin110001000110…
…101011111100
3220012222200012
4301012223330
511243404234
61135522352
7214261664
oct61065374
926188605
1012872444
1172a2292
1243893b8
132889140
1419d11a4
1511e40ce
hexc46afc

12872444 has 12 divisors (see below), whose sum is σ = 24259704. Its totient is φ = 5941104.

The previous prime is 12872441. The next prime is 12872449. The reversal of 12872444 is 44427821.

It is a self number, because there is not a number n which added to its sum of digits gives 12872444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123722 + ... + 123825.

It is an arithmetic number, because the mean of its divisors is an integer number (2021642).

Almost surely, 212872444 is an apocalyptic number.

It is an amenable number.

12872444 is a deficient number, since it is larger than the sum of its proper divisors (11387260).

12872444 is a wasteful number, since it uses less digits than its factorization.

12872444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247564 (or 247562 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 12872444 is about 3587.8188360061. The cubic root of 12872444 is about 234.3618964882.

The spelling of 12872444 in words is "twelve million, eight hundred seventy-two thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 247547 495094 990188 3218111 6436222 12872444