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90039223 = 677917011
BaseRepresentation
bin1010101110111…
…10001110110111
320021102110121001
411113132032313
5141022223343
612533504131
72142215011
oct527361667
9207373531
1090039223
114690888a
12261a2047
1315866a61
14bd5b1b1
157d8844d
hex55de3b7

90039223 has 8 divisors (see below), whose sum is σ = 92545280. Its totient is φ = 87567480.

The previous prime is 90039211. The next prime is 90039247. The reversal of 90039223 is 32293009.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90039223 - 217 = 89908151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90039191 and 90039200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90039023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3213 + ... + 13798.

It is an arithmetic number, because the mean of its divisors is an integer number (11568160).

Almost surely, 290039223 is an apocalyptic number.

90039223 is a deficient number, since it is larger than the sum of its proper divisors (2506057).

90039223 is a wasteful number, since it uses less digits than its factorization.

90039223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 90039223 is about 9488.8999889344. The cubic root of 90039223 is about 448.2055667334.

The spelling of 90039223 in words is "ninety million, thirty-nine thousand, two hundred twenty-three".

Divisors: 1 67 79 5293 17011 1139737 1343869 90039223