Base | Representation |
---|---|
bin | 111111010101001011… |
… | …111011010110100100 |
3 | 20111112010020000121112 |
4 | 333111023323112210 |
5 | 2103231300330030 |
6 | 51123405204152 |
7 | 4625063343152 |
oct | 772513732644 |
9 | 214463200545 |
10 | 68001183140 |
11 | 26925993410 |
12 | 11219560658 |
13 | 65492c5997 |
14 | 34113883d2 |
15 | 1b7edd3a95 |
hex | fd52fb5a4 |
68001183140 has 72 divisors (see below), whose sum is σ = 162852536448. Its totient is φ = 23652544960.
The previous prime is 68001183139. The next prime is 68001183169. The reversal of 68001183140 is 4138110086.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 68001183097 and 68001183106.
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, 175772 + ... + 408531.
It is an arithmetic number, because the mean of its divisors is an integer number (2261840784).
Almost surely, 268001183140 is an apocalyptic number.
It is an amenable number.
68001183140 is an abundant number, since it is smaller than the sum of its proper divisors (94851353308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68001183140 is a wasteful number, since it uses less digits than its factorization.
68001183140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 584369 (or 584344 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 32.
The spelling of 68001183140 in words is "sixty-eight billion, one million, one hundred eighty-three thousand, one hundred forty".
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