Search a number
-
+
12889104 = 2432631021
BaseRepresentation
bin110001001010…
…110000010000
3220020211112020
4301022300100
511244422404
61140131440
7214361364
oct61126020
926224466
1012889104
117303858
124396b80
1328938b7
1419d72a4
1511e8ed9
hexc4ac10

12889104 has 40 divisors (see below), whose sum is σ = 33456192. Its totient is φ = 4275840.

The previous prime is 12889091. The next prime is 12889109. The reversal of 12889104 is 40198821.

It is a super-2 number, since 2×128891042 = 332258003845632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12889109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12114 + ... + 13134.

Almost surely, 212889104 is an apocalyptic number.

It is an amenable number.

12889104 is an abundant number, since it is smaller than the sum of its proper divisors (20567088).

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

12889104 is a wasteful number, since it uses less digits than its factorization.

12889104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1289 counting only the distinct ones).

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

The square root of 12889104 is about 3590.1398301459. The cubic root of 12889104 is about 234.4629595541.

The spelling of 12889104 in words is "twelve million, eight hundred eighty-nine thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 48 263 526 789 1021 1052 1578 2042 2104 3063 3156 4084 4208 6126 6312 8168 12252 12624 16336 24504 49008 268523 537046 805569 1074092 1611138 2148184 3222276 4296368 6444552 12889104