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12906684 = 2232751217
BaseRepresentation
bin110001001111…
…000010111100
3220021201122100
4301033002330
511301003214
61140345100
7214463550
oct61170274
926251570
1012906684
117315a8a
1243a5190
13289b8bb
1419dd860
1511ee309
hexc4f0bc

12906684 has 36 divisors (see below), whose sum is σ = 37286704. Its totient is φ = 3687552.

The previous prime is 12906667. The next prime is 12906697. The reversal of 12906684 is 48660921.

12906684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25357 + ... + 25860.

Almost surely, 212906684 is an apocalyptic number.

12906684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12906684 is an abundant number, since it is smaller than the sum of its proper divisors (24380020).

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

12906684 is a wasteful number, since it uses less digits than its factorization.

12906684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51234 (or 51229 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 12906684 is about 3592.5873684574. The cubic root of 12906684 is about 234.5695091444.

The spelling of 12906684 in words is "twelve million, nine hundred six thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 51217 102434 153651 204868 307302 358519 460953 614604 717038 921906 1075557 1434076 1843812 2151114 3226671 4302228 6453342 12906684