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8940442900 = 225289404429
BaseRepresentation
bin10000101001110010…
…00101010100010100
3212002002000120000211
420110321011110110
5121302223133100
64035052415204
7434360340124
oct102471052424
925062016024
108940442900
113878713094
121896177504
13ac6329acc
1460b550c84
15374d651ba
hex214e45514

8940442900 has 18 divisors (see below), whose sum is σ = 19400761310. Its totient is φ = 3576177120.

The previous prime is 8940442891. The next prime is 8940442943. The reversal of 8940442900 is 92440498.

It can be written as a sum of positive squares in 3 ways, for example, as 476810896 + 8463632004 = 21836^2 + 91998^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44702115 + ... + 44702314.

Almost surely, 28940442900 is an apocalyptic number.

It is an amenable number.

8940442900 is an abundant number, since it is smaller than the sum of its proper divisors (10460318410).

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

8940442900 is a wasteful number, since it uses less digits than its factorization.

8940442900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89404443 (or 89404436 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 8940442900 is about 94553.9153076170. The cubic root of 8940442900 is about 2075.4853773324.

The spelling of 8940442900 in words is "eight billion, nine hundred forty million, four hundred forty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 89404429 178808858 357617716 447022145 894044290 1788088580 2235110725 4470221450 8940442900