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89276645 = 5295311617
BaseRepresentation
bin1010101001001…
…00000011100101
320012222201112102
411110210003211
5140323323040
612505301445
72132560523
oct524440345
9205881472
1089276645
1146437957
1225a94885
131565a923
14bbdd313
157c87515
hex55240e5

89276645 has 16 divisors (see below), whose sum is σ = 112926960. Its totient is φ = 67651584.

The previous prime is 89276633. The next prime is 89276659. The reversal of 89276645 is 54667298.

It can be written as a sum of positive squares in 8 ways, for example, as 49729 + 89226916 = 223^2 + 9446^2 .

It is a cyclic number.

It is not a de Polignac number, because 89276645 - 26 = 89276581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89276645.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1877 + ... + 13493.

It is an arithmetic number, because the mean of its divisors is an integer number (7057935).

Almost surely, 289276645 is an apocalyptic number.

It is an amenable number.

89276645 is a deficient number, since it is larger than the sum of its proper divisors (23650315).

89276645 is a wasteful number, since it uses less digits than its factorization.

89276645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704.

The product of its digits is 725760, while the sum is 47.

The square root of 89276645 is about 9448.6319115521. The cubic root of 89276645 is about 446.9366338450.

The spelling of 89276645 in words is "eighty-nine million, two hundred seventy-six thousand, six hundred forty-five".

Divisors: 1 5 29 53 145 265 1537 7685 11617 58085 336893 615701 1684465 3078505 17855329 89276645