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10881688 = 2310912479
BaseRepresentation
bin101001100000…
…101010011000
3202110211212111
4221200222120
510241203223
61025122104
7161331016
oct51405230
922424774
1010881688
116162634
123789334
13233cc8c
1416338b6
15e4e30d
hexa60a98

10881688 has 16 divisors (see below), whose sum is σ = 20592000. Its totient is φ = 5390496.

The previous prime is 10881679. The next prime is 10881701. The reversal of 10881688 is 88618801.

It is a super-2 number, since 2×108816882 = 236822267458688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10881688.

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, 5368 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (1287000).

Almost surely, 210881688 is an apocalyptic number.

It is an amenable number.

10881688 is a deficient number, since it is larger than the sum of its proper divisors (9710312).

10881688 is a wasteful number, since it uses less digits than its factorization.

10881688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594 (or 12590 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 40.

The square root of 10881688 is about 3298.7403656547. The cubic root of 10881688 is about 221.5977891667.

It can be divided in two parts, 108 and 81688, that added together give a square (81796 = 2862).

The spelling of 10881688 in words is "ten million, eight hundred eighty-one thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 109 218 436 872 12479 24958 49916 99832 1360211 2720422 5440844 10881688