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90208016 = 2431181871
BaseRepresentation
bin1010110000001…
…11011100010000
320021202001010122
411120013130100
5141043124031
612541245412
72143520063
oct530073420
9207661118
1090208016
1146a13688
1226263868
13158c5832
14bda28da
157dbd47b
hex5607710

90208016 has 20 divisors (see below), whose sum is σ = 180417024. Its totient is φ = 43648800.

The previous prime is 90208003. The next prime is 90208021. The reversal of 90208016 is 61080209.

90208016 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90440 + ... + 91431.

Almost surely, 290208016 is an apocalyptic number.

It is an amenable number.

90208016 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.

90208016 is a wasteful number, since it uses less digits than its factorization.

90208016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181910 (or 181904 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 90208016 is about 9497.7900587452. The cubic root of 90208016 is about 448.4854696976.

The spelling of 90208016 in words is "ninety million, two hundred eight thousand, sixteen".

Divisors: 1 2 4 8 16 31 62 124 248 496 181871 363742 727484 1454968 2909936 5638001 11276002 22552004 45104008 90208016