Base | Representation |
---|---|
bin | 1101111100111011011000… |
… | …11010111110001100110000 |
3 | 11000122001102122022112012001 |
4 | 12332131230122332030300 |
5 | 13010133204210431133 |
6 | 145130315031343344 |
7 | 6314420043352102 |
oct | 676355432761460 |
9 | 130561378275161 |
10 | 30680770405168 |
11 | 9859707058514 |
12 | 353617bb21b54 |
13 | 14172519c19c0 |
14 | 780d5882d572 |
15 | 383125a9387d |
hex | 1be76c6be330 |
30680770405168 has 120 divisors (see below), whose sum is σ = 68454177575840. Its totient is φ = 13239128678400.
The previous prime is 30680770405157. The next prime is 30680770405213. The reversal of 30680770405168 is 86150407708603.
It is a super-2 number, since 2×306807704051682 (a number of 28 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7386868 + ... + 10766956.
Almost surely, 230680770405168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30680770405168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34227088787920).
30680770405168 is an abundant number, since it is smaller than the sum of its proper divisors (37773407170672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30680770405168 is a wasteful number, since it uses less digits than its factorization.
30680770405168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3380295 (or 3380272 counting only the distinct ones).
The product of its (nonzero) digits is 6773760, while the sum is 55.
The spelling of 30680770405168 in words is "thirty trillion, six hundred eighty billion, seven hundred seventy million, four hundred five thousand, one hundred sixty-eight".
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