Search a number
-
+
12889924 = 2231103951
BaseRepresentation
bin110001001010…
…111101000100
3220020212122121
4301022331010
511244434144
61140135324
7214363645
oct61127504
926225577
1012889924
117304433
124397544
132894098
1419d76cc
1511e9384
hexc4af44

12889924 has 12 divisors (see below), whose sum is σ = 23285248. Its totient is φ = 6237000.

The previous prime is 12889909. The next prime is 12889939. The reversal of 12889924 is 42998821.

It is an interprime number because it is at equal distance from previous prime (12889909) and next prime (12889939).

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 3 ways as a sum of consecutive naturals, for example, 51852 + ... + 52099.

Almost surely, 212889924 is an apocalyptic number.

It is an amenable number.

12889924 is a deficient number, since it is larger than the sum of its proper divisors (10395324).

12889924 is a wasteful number, since it uses less digits than its factorization.

12889924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103986 (or 103984 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 12889924 is about 3590.2540300096. The cubic root of 12889924 is about 234.4679315974.

The spelling of 12889924 in words is "twelve million, eight hundred eighty-nine thousand, nine hundred twenty-four".

Divisors: 1 2 4 31 62 124 103951 207902 415804 3222481 6444962 12889924