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90084684 = 2237507057
BaseRepresentation
bin1010101111010…
…01010101001100
320021111202221210
411113221111030
5141030202214
612534454420
72142464364
oct527512514
9207452853
1090084684
1146939a58
1226204410
1315881661
14bd6d9a4
157d96b59
hex55e954c

90084684 has 12 divisors (see below), whose sum is σ = 210197624. Its totient is φ = 30028224.

The previous prime is 90084679. The next prime is 90084737. The reversal of 90084684 is 48648009.

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

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, 3753517 + ... + 3753540.

Almost surely, 290084684 is an apocalyptic number.

It is an amenable number.

90084684 is an abundant number, since it is smaller than the sum of its proper divisors (120112940).

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

90084684 is a wasteful number, since it uses less digits than its factorization.

90084684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507064 (or 7507062 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 90084684 is about 9491.2951697858. The cubic root of 90084684 is about 448.2809873641.

The spelling of 90084684 in words is "ninety million, eighty-four thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 7507057 15014114 22521171 30028228 45042342 90084684