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12887376 = 243268487
BaseRepresentation
bin110001001010…
…010101010000
3220020202011020
4301022111100
511244344001
61140115440
7214353345
oct61122520
926222136
1012887376
117302527
124395b80
132892b88
1419d67cc
1511e8736
hexc4a550

12887376 has 20 divisors (see below), whose sum is σ = 33292512. Its totient is φ = 4295776.

The previous prime is 12887341. The next prime is 12887389. The reversal of 12887376 is 67378821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134196 + ... + 134291.

Almost surely, 212887376 is an apocalyptic number.

12887376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12887376 is an abundant number, since it is smaller than the sum of its proper divisors (20405136).

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

12887376 is a wasteful number, since it uses less digits than its factorization.

12887376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268498 (or 268492 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 12887376 is about 3589.8991629292. The cubic root of 12887376 is about 234.4524811918.

The spelling of 12887376 in words is "twelve million, eight hundred eighty-seven thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 268487 536974 805461 1073948 1610922 2147896 3221844 4295792 6443688 12887376