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12893788 = 2221115277
BaseRepresentation
bin110001001011…
…111001011100
3220021001221201
4301023321130
511300100123
61140205244
7214411135
oct61137134
926231851
1012893788
117307326
124399824
132895a7b
1419d8c8c
1511ea5ad
hexc4be5c

12893788 has 12 divisors (see below), whose sum is σ = 22672552. Its totient is φ = 6415920.

The previous prime is 12893767. The next prime is 12893791. The reversal of 12893788 is 88739821.

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, 6795 + ... + 8482.

Almost surely, 212893788 is an apocalyptic number.

It is an amenable number.

12893788 is a deficient number, since it is larger than the sum of its proper divisors (9778764).

12893788 is a wasteful number, since it uses less digits than its factorization.

12893788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15492 (or 15490 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 12893788 is about 3590.7921131695. The cubic root of 12893788 is about 234.4913579981.

The spelling of 12893788 in words is "twelve million, eight hundred ninety-three thousand, seven hundred eighty-eight".

Divisors: 1 2 4 211 422 844 15277 30554 61108 3223447 6446894 12893788