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90955106065 = 521298544397
BaseRepresentation
bin101010010110101011…
…0001100011100010001
322200202211002010100001
41110231112030130101
52442234001343230
6105441215330001
76366644434225
oct1245526143421
9280684063301
1090955106065
113563487144a
1215764820901
1387669711b5
14458bac0785
1525751410ca
hex152d58c711

90955106065 has 8 divisors (see below), whose sum is σ = 109197406440. Its totient is φ = 72729898752.

The previous prime is 90955106063. The next prime is 90955106083. The reversal of 90955106065 is 56060155909.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8011682064 + 82943424001 = 89508^2 + 287999^2 .

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 90955106065 - 21 = 90955106063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90955106063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4261554 + ... + 4282843.

It is an arithmetic number, because the mean of its divisors is an integer number (13649675805).

Almost surely, 290955106065 is an apocalyptic number.

It is an amenable number.

90955106065 is a deficient number, since it is larger than the sum of its proper divisors (18242300375).

90955106065 is a wasteful number, since it uses less digits than its factorization.

90955106065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546531.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 90955106065 in words is "ninety billion, nine hundred fifty-five million, one hundred six thousand, sixty-five".

Divisors: 1 5 2129 10645 8544397 42721985 18191021213 90955106065