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90159027 = 3716572591
BaseRepresentation
bin1010101111110…
…11011110110011
320021122112221020
411113323132303
5141040042102
612540230523
72143224210
oct527733663
9207575836
1090159027
114698a8a2
122623b443
13158a944a
14bd8cb07
157dadbbc
hex55fb7b3

90159027 has 16 divisors (see below), whose sum is σ = 137521152. Its totient is φ = 51468480.

The previous prime is 90159001. The next prime is 90159053. The reversal of 90159027 is 72095109.

It is an interprime number because it is at equal distance from previous prime (90159001) and next prime (90159053).

It is not a de Polignac number, because 90159027 - 219 = 89634739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90159227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33502 + ... + 36092.

It is an arithmetic number, because the mean of its divisors is an integer number (8595072).

Almost surely, 290159027 is an apocalyptic number.

90159027 is a deficient number, since it is larger than the sum of its proper divisors (47362125).

90159027 is a wasteful number, since it uses less digits than its factorization.

90159027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 90159027 is about 9495.2107401574. The cubic root of 90159027 is about 448.4042691049.

The spelling of 90159027 in words is "ninety million, one hundred fifty-nine thousand, twenty-seven".

Divisors: 1 3 7 21 1657 2591 4971 7773 11599 18137 34797 54411 4293287 12879861 30053009 90159027