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90085383 = 3210009487
BaseRepresentation
bin1010101111010…
…01100000000111
320021111210220200
411113221200013
5141030213013
612534501543
72142466413
oct527514007
9207453820
1090085383
114693a533
12262048b3
1315881a7b
14bd6dd43
157d96e73
hex55e9807

90085383 has 6 divisors (see below), whose sum is σ = 130123344. Its totient is φ = 60056916.

The previous prime is 90085381. The next prime is 90085399. The reversal of 90085383 is 38358009.

It is not a de Polignac number, because 90085383 - 21 = 90085381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90085381) 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 5 ways as a sum of consecutive naturals, for example, 5004735 + ... + 5004752.

It is an arithmetic number, because the mean of its divisors is an integer number (21687224).

Almost surely, 290085383 is an apocalyptic number.

90085383 is a deficient number, since it is larger than the sum of its proper divisors (40037961).

90085383 is a wasteful number, since it uses less digits than its factorization.

90085383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009493 (or 10009490 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 90085383 is about 9491.3319929291. The cubic root of 90085383 is about 448.2821468198.

The spelling of 90085383 in words is "ninety million, eighty-five thousand, three hundred eighty-three".

Divisors: 1 3 9 10009487 30028461 90085383