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89664085 = 572988339
BaseRepresentation
bin1010101100000…
…10101001010101
320020201102000001
411112002221111
5140423222320
612521451301
72136063220
oct526025125
9206642001
1089664085
1146681a55
1226040b31
1315765094
14bca05b7
157d1220a
hex5582a55

89664085 has 16 divisors (see below), whose sum is σ = 127209600. Its totient is φ = 59363136.

The previous prime is 89664079. The next prime is 89664101. The reversal of 89664085 is 58046698.

It is not a de Polignac number, because 89664085 - 23 = 89664077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43155 + ... + 45184.

It is an arithmetic number, because the mean of its divisors is an integer number (7950600).

Almost surely, 289664085 is an apocalyptic number.

It is an amenable number.

89664085 is a deficient number, since it is larger than the sum of its proper divisors (37545515).

89664085 is a wasteful number, since it uses less digits than its factorization.

89664085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88380.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 89664085 is about 9469.1121547904. The cubic root of 89664085 is about 447.5822347130.

The spelling of 89664085 in words is "eighty-nine million, six hundred sixty-four thousand, eighty-five".

Divisors: 1 5 7 29 35 145 203 1015 88339 441695 618373 2561831 3091865 12809155 17932817 89664085