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12706884 = 2232418609
BaseRepresentation
bin110000011110…
…010001000100
3212220120120100
4300132101010
511223110014
61132204100
7213002211
oct60362104
925816510
1012706884
117199963
124309630
13282b988
14198ab08
1511b0009
hexc1e444

12706884 has 36 divisors (see below), whose sum is σ = 32907420. Its totient is φ = 4131840.

The previous prime is 12706847. The next prime is 12706937. The reversal of 12706884 is 48860721.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 11088900 = 1272^2 + 3330^2 .

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

It is a super-2 number, since 2×127068842 = 322929801978912, which contains 22 as substring.

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

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, 2829 + ... + 5780.

It is an arithmetic number, because the mean of its divisors is an integer number (914095).

Almost surely, 212706884 is an apocalyptic number.

It is an amenable number.

12706884 is an abundant number, since it is smaller than the sum of its proper divisors (20200536).

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

12706884 is a wasteful number, since it uses less digits than its factorization.

12706884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660 (or 8655 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 12706884 is about 3564.6716538834. The cubic root of 12706884 is about 233.3528029105.

The spelling of 12706884 in words is "twelve million, seven hundred six thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 8609 17218 25827 34436 51654 77481 103308 154962 309924 352969 705938 1058907 1411876 2117814 3176721 4235628 6353442 12706884