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12768822 = 2321164489
BaseRepresentation
bin110000101101…
…011000110110
3220000201112100
4300231120312
511232100242
61133402530
7213350613
oct60553066
926021470
1012768822
117231450
124339446
132850c21
1419a550a
1511c354c
hexc2d636

12768822 has 24 divisors (see below), whose sum is σ = 30181320. Its totient is φ = 3869280.

The previous prime is 12768809. The next prime is 12768827. The reversal of 12768822 is 22886721.

It is a happy number.

12768822 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32047 + ... + 32442.

It is an arithmetic number, because the mean of its divisors is an integer number (1257555).

Almost surely, 212768822 is an apocalyptic number.

12768822 is an abundant number, since it is smaller than the sum of its proper divisors (17412498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12768822 is a wasteful number, since it uses less digits than its factorization.

12768822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64508 (or 64505 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 12768822 is about 3573.3488494688. The cubic root of 12768822 is about 233.7313375055.

The spelling of 12768822 in words is "twelve million, seven hundred sixty-eight thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 64489 128978 193467 386934 580401 709379 1160802 1418758 2128137 4256274 6384411 12768822