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90160672 = 257402503
BaseRepresentation
bin1010101111110…
…11111000100000
320021122122012011
411113323320200
5141040120142
612540242304
72143232050
oct527737040
9207578164
1090160672
1146991058
1226240394
13158aa114
14bd8d560
157dae417
hex55fbe20

90160672 has 24 divisors (see below), whose sum is σ = 202862016. Its totient is φ = 38640192.

The previous prime is 90160657. The next prime is 90160703. The reversal of 90160672 is 27606109.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

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, 201028 + ... + 201475.

It is an arithmetic number, because the mean of its divisors is an integer number (8452584).

Almost surely, 290160672 is an apocalyptic number.

It is an amenable number.

90160672 is an abundant number, since it is smaller than the sum of its proper divisors (112701344).

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

90160672 is a wasteful number, since it uses less digits than its factorization.

90160672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402520 (or 402512 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90160672 is about 9495.2973623789. The cubic root of 90160672 is about 448.4069962141.

The spelling of 90160672 in words is "ninety million, one hundred sixty thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 402503 805006 1610012 2817521 3220024 5635042 6440048 11270084 12880096 22540168 45080336 90160672