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90035089 = 574915661
BaseRepresentation
bin1010101110111…
…01001110010001
320021102020220221
411113131032101
5141022110324
612533433041
72142166654
oct527351621
9207366827
1090035089
1146905771
122619b781
1315864c01
14bd5989b
157d870e4
hex55dd391

90035089 has 4 divisors (see below), whose sum is σ = 90056500. Its totient is φ = 90013680.

The previous prime is 90035051. The next prime is 90035093. The reversal of 90035089 is 98053009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46580625 + 43454464 = 6825^2 + 6592^2 .

It is a cyclic number.

It is not a de Polignac number, because 90035089 - 27 = 90034961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90035039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (22514125).

Almost surely, 290035089 is an apocalyptic number.

It is an amenable number.

90035089 is a deficient number, since it is larger than the sum of its proper divisors (21411).

90035089 is a wasteful number, since it uses less digits than its factorization.

90035089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21410.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90035089 is about 9488.6821529652. The cubic root of 90035089 is about 448.1987070927.

The spelling of 90035089 in words is "ninety million, thirty-five thousand, eighty-nine".

Divisors: 1 5749 15661 90035089