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90102876 = 2237508573
BaseRepresentation
bin1010101111011…
…01110001011100
320021112200220120
411113231301130
5141031243001
612535114540
72142601413
oct527556134
9207480816
1090102876
1146951696
1226212a50
1315889a16
14bd7647a
157d9c236
hex55edc5c

90102876 has 12 divisors (see below), whose sum is σ = 210240072. Its totient is φ = 30034288.

The previous prime is 90102869. The next prime is 90102889. The reversal of 90102876 is 67820109.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3754275 + ... + 3754298.

It is an arithmetic number, because the mean of its divisors is an integer number (17520006).

Almost surely, 290102876 is an apocalyptic number.

It is an amenable number.

90102876 is an abundant number, since it is smaller than the sum of its proper divisors (120137196).

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

90102876 is a wasteful number, since it uses less digits than its factorization.

90102876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508580 (or 7508578 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 90102876 is about 9492.2534732275. The cubic root of 90102876 is about 448.3111611164.

The spelling of 90102876 in words is "ninety million, one hundred two thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 12 7508573 15017146 22525719 30034292 45051438 90102876