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90122965 = 520118963
BaseRepresentation
bin1010101111100…
…10101011010101
320021120201110121
411113302223111
5141032413330
612535351541
72143014112
oct527625325
9207521417
1090122965
1146965799
12262225b1
1315895bca
14bd7d909
157da317a
hex55f2ad5

90122965 has 8 divisors (see below), whose sum is σ = 108213408. Its totient is φ = 72054480.

The previous prime is 90122957. The next prime is 90123041. The reversal of 90122965 is 56922109.

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

It is not a de Polignac number, because 90122965 - 23 = 90122957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90122965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5574 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (13526676).

Almost surely, 290122965 is an apocalyptic number.

It is an amenable number.

90122965 is a deficient number, since it is larger than the sum of its proper divisors (18090443).

90122965 is a wasteful number, since it uses less digits than its factorization.

90122965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90122965 is about 9493.3115929058. The cubic root of 90122965 is about 448.3444765668.

The spelling of 90122965 in words is "ninety million, one hundred twenty-two thousand, nine hundred sixty-five".

Divisors: 1 5 2011 8963 10055 44815 18024593 90122965