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90298120 = 23511205223
BaseRepresentation
bin1010110000111…
…01011100001000
320021220121201211
411120131130020
5141104014440
612543222504
72144343553
oct530353410
9207817654
1090298120
1146a75350
12262a7a34
1315927853
14bdc769a
157dd9eea
hex561d708

90298120 has 32 divisors (see below), whose sum is σ = 221641920. Its totient is φ = 32835520.

The previous prime is 90298097. The next prime is 90298123. The reversal of 90298120 is 2189209.

It is not an unprimeable number, because it can be changed into a prime (90298123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102172 + ... + 103051.

It is an arithmetic number, because the mean of its divisors is an integer number (6926310).

Almost surely, 290298120 is an apocalyptic number.

It is an amenable number.

90298120 is an abundant number, since it is smaller than the sum of its proper divisors (131343800).

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

90298120 is a wasteful number, since it uses less digits than its factorization.

90298120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205245 (or 205241 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 90298120 is about 9502.5322940782. The cubic root of 90298120 is about 448.6347427867.

The spelling of 90298120 in words is "ninety million, two hundred ninety-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 205223 410446 820892 1026115 1641784 2052230 2257453 4104460 4514906 8208920 9029812 11287265 18059624 22574530 45149060 90298120