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12810984 = 233975503
BaseRepresentation
bin110000110111…
…101011101000
3220002212100220
4300313223220
511234422414
61134330040
7213614544
oct60675350
926085326
1012810984
11726009a
124359920
132867184
1419b6a24
1511d0ca9
hexc37ae8

12810984 has 32 divisors (see below), whose sum is σ = 32363520. Its totient is φ = 4225536.

The previous prime is 12810971. The next prime is 12811009. The reversal of 12810984 is 48901821.

It is a super-2 number, since 2×128109842 = 328242622096512, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 424 + ... + 5079.

It is an arithmetic number, because the mean of its divisors is an integer number (1011360).

Almost surely, 212810984 is an apocalyptic number.

It is an amenable number.

12810984 is an abundant number, since it is smaller than the sum of its proper divisors (19552536).

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

12810984 is a wasteful number, since it uses less digits than its factorization.

12810984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609 (or 5605 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 12810984 is about 3579.2434954890. The cubic root of 12810984 is about 233.9883111993.

The spelling of 12810984 in words is "twelve million, eight hundred ten thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 97 194 291 388 582 776 1164 2328 5503 11006 16509 22012 33018 44024 66036 132072 533791 1067582 1601373 2135164 3202746 4270328 6405492 12810984