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90648854 = 264370489
BaseRepresentation
bin1010110011100…
…11000100010110
320022120102211222
411121303010112
5141201230404
612554530342
72150334242
oct531630426
9208512758
1090648854
114719490a
12264369b2
1315a1b39a
14c079422
157e58dbe
hex5673116

90648854 has 8 divisors (see below), whose sum is σ = 136186680. Its totient is φ = 45253296.

The previous prime is 90648851. The next prime is 90648863. The reversal of 90648854 is 45884609.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90648851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33959 + ... + 36530.

It is an arithmetic number, because the mean of its divisors is an integer number (17023335).

Almost surely, 290648854 is an apocalyptic number.

90648854 is a deficient number, since it is larger than the sum of its proper divisors (45537826).

90648854 is a wasteful number, since it uses less digits than its factorization.

90648854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71134.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 90648854 is about 9520.9691733563. The cubic root of 90648854 is about 449.2148514657.

The spelling of 90648854 in words is "ninety million, six hundred forty-eight thousand, eight hundred fifty-four".

Divisors: 1 2 643 1286 70489 140978 45324427 90648854