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12823444 = 2212725243
BaseRepresentation
bin110000111010…
…101110010100
3220010111110101
4300322232110
511240322234
61134503444
7213666064
oct60725624
926114411
1012823444
117269497
124364b84
13286ca4a
1419bb3a4
1511d4814
hexc3ab94

12823444 has 12 divisors (see below), whose sum is σ = 22618624. Its totient is φ = 6360984.

The previous prime is 12823441. The next prime is 12823453. The reversal of 12823444 is 44432821.

It is a happy number.

12823444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128234442 = 328881432042272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12823441) 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, 12114 + ... + 13129.

Almost surely, 212823444 is an apocalyptic number.

It is an amenable number.

12823444 is a deficient number, since it is larger than the sum of its proper divisors (9795180).

12823444 is a wasteful number, since it uses less digits than its factorization.

12823444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25374 (or 25372 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 12823444 is about 3580.9836637438. The cubic root of 12823444 is about 234.0641458545.

The spelling of 12823444 in words is "twelve million, eight hundred twenty-three thousand, four hundred forty-four".

Divisors: 1 2 4 127 254 508 25243 50486 100972 3205861 6411722 12823444