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90495664 = 247807997
BaseRepresentation
bin1010110010011…
…01101010110000
320022021122201021
411121031222300
5141131330124
612551345224
72146125520
oct531155260
9208248637
1090495664
114709a806
1226382214
131599673c
14c039680
157e287e4
hex564dab0

90495664 has 20 divisors (see below), whose sum is σ = 200383504. Its totient is φ = 38783808.

The previous prime is 90495653. The next prime is 90495667. The reversal of 90495664 is 46659409.

It is a happy number.

It is a super-3 number, since 3×904956643 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90495664.

It is not an unprimeable number, because it can be changed into a prime (90495667) 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, 403887 + ... + 404110.

Almost surely, 290495664 is an apocalyptic number.

It is an amenable number.

90495664 is an abundant number, since it is smaller than the sum of its proper divisors (109887840).

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

90495664 is a wasteful number, since it uses less digits than its factorization.

90495664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808012 (or 808006 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 90495664 is about 9512.9208973900. The cubic root of 90495664 is about 448.9616619300.

The spelling of 90495664 in words is "ninety million, four hundred ninety-five thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 807997 1615994 3231988 5655979 6463976 11311958 12927952 22623916 45247832 90495664