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89960020 = 2254498001
BaseRepresentation
bin1010101110010…
…10111001010100
320021021102221121
411113022321110
5141012210040
612532053324
72141435053
oct527127124
9207242847
1089960020
1146864327
1226164244
13158399a7
14bd3a39a
157d6ec4a
hex55cae54

89960020 has 12 divisors (see below), whose sum is σ = 188916084. Its totient is φ = 35984000.

The previous prime is 89960011. The next prime is 89960033. The reversal of 89960020 is 2006998.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 65318724 = 4964^2 + 8082^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248981 + ... + 2249020.

It is an arithmetic number, because the mean of its divisors is an integer number (15743007).

Almost surely, 289960020 is an apocalyptic number.

It is an amenable number.

89960020 is an abundant number, since it is smaller than the sum of its proper divisors (98956064).

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

89960020 is a wasteful number, since it uses less digits than its factorization.

89960020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498010 (or 4498008 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 89960020 is about 9484.7256154303. The cubic root of 89960020 is about 448.0741068416.

The spelling of 89960020 in words is "eighty-nine million, nine hundred sixty thousand, twenty".

Divisors: 1 2 4 5 10 20 4498001 8996002 17992004 22490005 44980010 89960020