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12684469902 = 23132715031193
BaseRepresentation
bin10111101000000110…
…11010011010001110
31012202000001211112120
423310003122122032
5201434211014102
65454400113410
7626222133546
oct136403323216
935660054476
1012684469902
11541a063a85
122560005866
131271bc71c0
148848b2326
154e38c66bc
hex2f40da68e

12684469902 has 64 divisors (see below), whose sum is σ = 27498756096. Its totient is φ = 3877528320.

The previous prime is 12684469891. The next prime is 12684469927. The reversal of 12684469902 is 20996448621.

12684469902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10631818 + ... + 10633010.

It is an arithmetic number, because the mean of its divisors is an integer number (429668064).

Almost surely, 212684469902 is an apocalyptic number.

12684469902 is an abundant number, since it is smaller than the sum of its proper divisors (14814286194).

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

12684469902 is a wasteful number, since it uses less digits than its factorization.

12684469902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 12684469902 in words is "twelve billion, six hundred eighty-four million, four hundred sixty-nine thousand, nine hundred two".

Divisors: 1 2 3 6 13 26 39 78 271 503 542 813 1006 1193 1509 1626 2386 3018 3523 3579 6539 7046 7158 10569 13078 15509 19617 21138 31018 39234 46527 93054 136313 272626 323303 408939 600079 646606 817878 969909 1200158 1772069 1800237 1939818 3544138 3600474 4202939 5316207 7801027 8405878 10632414 12608817 15602054 23403081 25217634 46806162 162621409 325242818 487864227 975728454 2114078317 4228156634 6342234951 12684469902