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90112023 = 3229033449
BaseRepresentation
bin1010101111100…
…00000000010111
320021120011110100
411113300000113
5141032041043
612535225143
72142640161
oct527600027
9207504410
1090112023
1146958551
12262181b3
1315890c31
14bd79931
157d9ecd3
hex55f0017

90112023 has 12 divisors (see below), whose sum is σ = 130244400. Its totient is φ = 60036576.

The previous prime is 90112013. The next prime is 90112027. The reversal of 90112023 is 32021109.

It is a happy number.

It is not a de Polignac number, because 90112023 - 25 = 90111991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90111987 and 90112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90112027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24403 + ... + 27851.

It is an arithmetic number, because the mean of its divisors is an integer number (10853700).

Almost surely, 290112023 is an apocalyptic number.

90112023 is a deficient number, since it is larger than the sum of its proper divisors (40132377).

90112023 is a wasteful number, since it uses less digits than its factorization.

90112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358 (or 6355 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 90112023 is about 9492.7352749352. The cubic root of 90112023 is about 448.3263310481.

The spelling of 90112023 in words is "ninety million, one hundred twelve thousand, twenty-three".

Divisors: 1 3 9 2903 3449 8709 10347 26127 31041 10012447 30037341 90112023