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12888882 = 23479561
BaseRepresentation
bin110001001010…
…101100110010
3220020211020000
4301022230302
511244421012
61140130430
7214360626
oct61125462
926224200
1012888882
117303676
124396a16
132893776
1419d7186
1511e8ddc
hexc4ab32

12888882 has 20 divisors (see below), whose sum is σ = 28881006. Its totient is φ = 4296240.

The previous prime is 12888853. The next prime is 12888917. The reversal of 12888882 is 28888821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 505521 = 3519^2 + 711^2 .

It is a super-2 number, since 2×128888822 = 332246558419848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39619 + ... + 39942.

Almost surely, 212888882 is an apocalyptic number.

12888882 is an abundant number, since it is smaller than the sum of its proper divisors (15992124).

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

12888882 is an equidigital number, since it uses as much as digits as its factorization.

12888882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79575 (or 79566 counting only the distinct ones).

The product of its digits is 131072, while the sum is 45.

The square root of 12888882 is about 3590.1089119970. The cubic root of 12888882 is about 234.4616134280.

The spelling of 12888882 in words is "twelve million, eight hundred eighty-eight thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 79561 159122 238683 477366 716049 1432098 2148147 4296294 6444441 12888882