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90345083 = 372441759
BaseRepresentation
bin1010110001010…
…00111001111011
320022000000011012
411120220321323
5141112020313
612544224135
72144630513
oct530507173
9208000135
1090345083
1146aa7664
122630b04b
131594303a
14bdda843
157de8da8
hex5628e7b

90345083 has 4 divisors (see below), whose sum is σ = 92786880. Its totient is φ = 87903288.

The previous prime is 90345071. The next prime is 90345091. The reversal of 90345083 is 38054309.

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

It is a cyclic number.

It is not a de Polignac number, because 90345083 - 28 = 90344827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90345023) 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, 1220843 + ... + 1220916.

It is an arithmetic number, because the mean of its divisors is an integer number (23196720).

Almost surely, 290345083 is an apocalyptic number.

90345083 is a deficient number, since it is larger than the sum of its proper divisors (2441797).

90345083 is a wasteful number, since it uses less digits than its factorization.

90345083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441796.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 90345083 is about 9505.0030510253. The cubic root of 90345083 is about 448.7125058744.

The spelling of 90345083 in words is "ninety million, three hundred forty-five thousand, eighty-three".

Divisors: 1 37 2441759 90345083