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9085930668 = 2232252386963
BaseRepresentation
bin10000111011001000…
…00100110010101100
3212110012210002201200
420131210010302230
5122101444240133
64101331005500
7441105064533
oct103544046254
925405702650
109085930668
113942853211
121916a39890
13b1a508c49
146229c331a
15382a02913
hex21d904cac

9085930668 has 18 divisors (see below), whose sum is σ = 22967213724. Its totient is φ = 3028643544.

The previous prime is 9085930639. The next prime is 9085930681. The reversal of 9085930668 is 8660395809.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×90859306682 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126193446 + ... + 126193517.

It is an arithmetic number, because the mean of its divisors is an integer number (1275956318).

Almost surely, 29085930668 is an apocalyptic number.

It is an amenable number.

9085930668 is an abundant number, since it is smaller than the sum of its proper divisors (13881283056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9085930668 is a wasteful number, since it uses less digits than its factorization.

9085930668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252386973 (or 252386968 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 9085930668 is about 95320.1482793643. The cubic root of 9085930668 is about 2086.6829756551.

The spelling of 9085930668 in words is "nine billion, eighty-five million, nine hundred thirty thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 252386963 504773926 757160889 1009547852 1514321778 2271482667 3028643556 4542965334 9085930668