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89382990 = 2358873359
BaseRepresentation
bin1010101001111…
…10000001001110
320020012010102010
411110332001032
5140340223430
612511442050
72133512544
oct524760116
9206163363
1089382990
11464aa844
1225b26326
1315697158
14bc29d94
157ca8cb0
hex553e04e

89382990 has 32 divisors (see below), whose sum is σ = 214824960. Its totient is φ = 23801504.

The previous prime is 89382989. The next prime is 89383001. The reversal of 89382990 is 9928398.

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 15 ways as a sum of consecutive naturals, for example, 24931 + ... + 28289.

It is an arithmetic number, because the mean of its divisors is an integer number (6713280).

Almost surely, 289382990 is an apocalyptic number.

89382990 is an abundant number, since it is smaller than the sum of its proper divisors (125441970).

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

89382990 is a wasteful number, since it uses less digits than its factorization.

89382990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 89382990 is about 9454.2577709728. The cubic root of 89382990 is about 447.1140248325.

The spelling of 89382990 in words is "eighty-nine million, three hundred eighty-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 887 1774 2661 3359 4435 5322 6718 8870 10077 13305 16795 20154 26610 33590 50385 100770 2979433 5958866 8938299 14897165 17876598 29794330 44691495 89382990