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90868230956 = 2241554074579
BaseRepresentation
bin101010010100000101…
…0110010101100101100
322200112202121102002102
41110220022302230230
52442044231342311
6105424433314232
76364541135066
oct1245012625454
9280482542072
1090868230956
113559a824938
121573b705978
1387519746c9
144580348736
15256c6d043b
hex15282b2b2c

90868230956 has 12 divisors (see below), whose sum is σ = 162897926520. Its totient is φ = 44325966240.

The previous prime is 90868230889. The next prime is 90868231001. The reversal of 90868230956 is 65903286809.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277037126 + ... + 277037453.

It is an arithmetic number, because the mean of its divisors is an integer number (13574827210).

Almost surely, 290868230956 is an apocalyptic number.

It is an amenable number.

90868230956 is a deficient number, since it is larger than the sum of its proper divisors (72029695564).

90868230956 is a wasteful number, since it uses less digits than its factorization.

90868230956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554074624 (or 554074622 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 90868230956 in words is "ninety billion, eight hundred sixty-eight million, two hundred thirty thousand, nine hundred fifty-six".

Divisors: 1 2 4 41 82 164 554074579 1108149158 2216298316 22717057739 45434115478 90868230956