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12888814 = 210959123
BaseRepresentation
bin110001001010…
…101011101110
3220020211010111
4301022223232
511244420224
61140130234
7214360501
oct61125356
926224114
1012888814
117303614
12439697a
132893723
1419d7138
1511e8d94
hexc4aaee

12888814 has 8 divisors (see below), whose sum is σ = 19510920. Its totient is φ = 6385176.

The previous prime is 12888803. The next prime is 12888851. The reversal of 12888814 is 41888821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×128888142 = 332243052653192, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 29344 + ... + 29779.

It is an arithmetic number, because the mean of its divisors is an integer number (2438865).

Almost surely, 212888814 is an apocalyptic number.

12888814 is a deficient number, since it is larger than the sum of its proper divisors (6622106).

12888814 is a wasteful number, since it uses less digits than its factorization.

12888814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59234.

The product of its digits is 32768, while the sum is 40.

The square root of 12888814 is about 3590.0994415197. The cubic root of 12888814 is about 234.4612010980.

The spelling of 12888814 in words is "twelve million, eight hundred eighty-eight thousand, eight hundred fourteen".

Divisors: 1 2 109 218 59123 118246 6444407 12888814