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89442380 = 22529154211
BaseRepresentation
bin1010101010011…
…00100001001100
320020022010212202
411111030201030
5140344124010
612513021032
72134150646
oct525144114
9206263782
1089442380
1146540425
1225b54778
13156b81b1
14bc43896
157cbb6a5
hex554c84c

89442380 has 24 divisors (see below), whose sum is σ = 194307120. Its totient is φ = 34543040.

The previous prime is 89442359. The next prime is 89442383. The reversal of 89442380 is 8324498.

It is not an unprimeable number, because it can be changed into a prime (89442383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76526 + ... + 77685.

It is an arithmetic number, because the mean of its divisors is an integer number (8096130).

Almost surely, 289442380 is an apocalyptic number.

It is an amenable number.

89442380 is an abundant number, since it is smaller than the sum of its proper divisors (104864740).

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

89442380 is a wasteful number, since it uses less digits than its factorization.

89442380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154249 (or 154247 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 89442380 is about 9457.3981622854. The cubic root of 89442380 is about 447.2130303326.

The spelling of 89442380 in words is "eighty-nine million, four hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 154211 308422 616844 771055 1542110 3084220 4472119 8944238 17888476 22360595 44721190 89442380