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89318530 = 2571275979
BaseRepresentation
bin1010101001011…
…10010010000010
320020001211222201
411110232102002
5140331143110
612510223414
72133123610
oct524562202
9206054881
1089318530
1146466374
1225ab4b6a
1315673a02
14bc106b0
157c94b3a
hex552e482

89318530 has 16 divisors (see below), whose sum is σ = 183741120. Its totient is φ = 30623472.

The previous prime is 89318513. The next prime is 89318539. The reversal of 89318530 is 3581398.

It is a self number, because there is not a number n which added to its sum of digits gives 89318530.

It is not an unprimeable number, because it can be changed into a prime (89318539) 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, 637920 + ... + 638059.

It is an arithmetic number, because the mean of its divisors is an integer number (11483820).

Almost surely, 289318530 is an apocalyptic number.

89318530 is an abundant number, since it is smaller than the sum of its proper divisors (94422590).

89318530 is a wasteful number, since it uses less digits than its factorization.

89318530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275993.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 89318530 is about 9450.8481100904. The cubic root of 89318530 is about 447.0065177962.

The spelling of 89318530 in words is "eighty-nine million, three hundred eighteen thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1275979 2551958 6379895 8931853 12759790 17863706 44659265 89318530