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90280876 = 2273224317
BaseRepresentation
bin1010110000110…
…01001110101100
320021212202002011
411120121032230
5141102442001
612543011004
72144242360
oct530311654
9207782064
1090280876
1146a633a4
1226299a64
131591ca4a
14bdc12a0
157dd4d51
hex56193ac

90280876 has 12 divisors (see below), whose sum is σ = 180561808. Its totient is φ = 38691792.

The previous prime is 90280873. The next prime is 90280909. The reversal of 90280876 is 67808209.

90280876 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (90280873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612131 + ... + 1612186.

Almost surely, 290280876 is an apocalyptic number.

It is an amenable number.

90280876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90280876 is a wasteful number, since it uses less digits than its factorization.

90280876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224328 (or 3224326 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 90280876 is about 9501.6249136661. The cubic root of 90280876 is about 448.6061827606.

The spelling of 90280876 in words is "ninety million, two hundred eighty thousand, eight hundred seventy-six".

Divisors: 1 2 4 7 14 28 3224317 6448634 12897268 22570219 45140438 90280876