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90653020 = 22513932609
BaseRepresentation
bin1010110011101…
…00000101011100
320022120122120021
411121310011130
5141201344040
612555001524
72150352343
oct531640534
9208518507
1090653020
1147197a57
12264392a4
1315a20253
14c07ab5a
157e5a24a
hex567415c

90653020 has 24 divisors (see below), whose sum is σ = 191746800. Its totient is φ = 35999232.

The previous prime is 90652973. The next prime is 90653033. The reversal of 90653020 is 2035609.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13525 + ... + 19084.

It is an arithmetic number, because the mean of its divisors is an integer number (7989450).

Almost surely, 290653020 is an apocalyptic number.

It is an amenable number.

90653020 is an abundant number, since it is smaller than the sum of its proper divisors (101093780).

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

90653020 is a wasteful number, since it uses less digits than its factorization.

90653020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32757 (or 32755 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 90653020 is about 9521.1879510910. The cubic root of 90653020 is about 449.2217329662.

Adding to 90653020 its reverse (2035609), we get a palindrome (92688629).

It can be divided in two parts, 9065 and 3020, that multiplied together give a triangular number (27376300 = T7399).

The spelling of 90653020 in words is "ninety million, six hundred fifty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 32609 65218 130436 163045 326090 652180 4532651 9065302 18130604 22663255 45326510 90653020