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9090824989 = 318915121821
BaseRepresentation
bin10000111011101101…
…01111101100011101
3212110112222202110211
420131312233230131
5122104222344424
64102023532421
7441164510641
oct103566575435
925415882424
109090824989
113945596404
1219185ba111
13b1b5308ac
146234d8c21
1538316cb94
hex21ddafb1d

9090824989 has 16 divisors (see below), whose sum is σ = 9552798720. Its totient is φ = 8640720000.

The previous prime is 9090824983. The next prime is 9090824993. The reversal of 9090824989 is 9894280909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9090824989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090824983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405699 + ... + 427519.

It is an arithmetic number, because the mean of its divisors is an integer number (597049920).

Almost surely, 29090824989 is an apocalyptic number.

It is an amenable number.

9090824989 is a deficient number, since it is larger than the sum of its proper divisors (461973731).

9090824989 is a wasteful number, since it uses less digits than its factorization.

9090824989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22092.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The square root of 9090824989 is about 95345.8178894072. The cubic root of 9090824989 is about 2087.0575864475.

The spelling of 9090824989 in words is "nine billion, ninety million, eight hundred twenty-four thousand, nine hundred eighty-nine".

Divisors: 1 31 89 151 2759 4681 13439 21821 416609 676451 1942069 3294971 60204139 102144101 293252419 9090824989