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90342760 = 23517132857
BaseRepresentation
bin1010110001010…
…00010101101000
320021222212222011
411120220111220
5141111432020
612544205304
72144620654
oct530502550
9207885864
1090342760
1146aa5942
1226309834
1315941c71
14bdd9a64
157de835a
hex5628568

90342760 has 32 divisors (see below), whose sum is σ = 215229960. Its totient is φ = 34011136.

The previous prime is 90342737. The next prime is 90342787. The reversal of 90342760 is 6724309.

It can be written as a sum of positive squares in 4 ways, for example, as 90288004 + 54756 = 9502^2 + 234^2 .

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 7 ways as a sum of consecutive naturals, for example, 65749 + ... + 67108.

Almost surely, 290342760 is an apocalyptic number.

It is an amenable number.

90342760 is an abundant number, since it is smaller than the sum of its proper divisors (124887200).

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

90342760 is a wasteful number, since it uses less digits than its factorization.

90342760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132885 (or 132881 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 90342760 is about 9504.8808514363. The cubic root of 90342760 is about 448.7086599979.

The spelling of 90342760 in words is "ninety million, three hundred forty-two thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 132857 265714 531428 664285 1062856 1328570 2258569 2657140 4517138 5314280 9034276 11292845 18068552 22585690 45171380 90342760