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10989906680 = 235274747667
BaseRepresentation
bin10100011110000110…
…01010101011111000
31001100220110002210202
422033003022223320
5140001404003210
65014303501332
7536224444154
oct121703125370
931326402722
1010989906680
11472a574605
1221685b7848
131061b0247c
14763804064
15444c489a5
hex28f0caaf8

10989906680 has 16 divisors (see below), whose sum is σ = 24727290120. Its totient is φ = 4395962656.

The previous prime is 10989906673. The next prime is 10989906701. The reversal of 10989906680 is 8660998901.

10989906680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137373794 + ... + 137373873.

Almost surely, 210989906680 is an apocalyptic number.

10989906680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10989906680 is an abundant number, since it is smaller than the sum of its proper divisors (13737383440).

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

10989906680 is a wasteful number, since it uses less digits than its factorization.

10989906680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274747678 (or 274747674 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 10989906680 in words is "ten billion, nine hundred eighty-nine million, nine hundred six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 274747667 549495334 1098990668 1373738335 2197981336 2747476670 5494953340 10989906680