Base | Representation |
---|---|
bin | 111111111111001111… |
… | …111010101011110010 |
3 | 20120100022002201210211 |
4 | 333333033322223302 |
5 | 2111202424401200 |
6 | 51321414414334 |
7 | 4651422530215 |
oct | 777717725362 |
9 | 216308081724 |
10 | 68706872050 |
11 | 27158268993 |
12 | 113959613aa |
13 | 662c57759b |
14 | 347ada377c |
15 | 1bc1d2baba |
hex | fff3faaf2 |
68706872050 has 24 divisors (see below), whose sum is σ = 127813823856. Its totient is φ = 27478653840.
The previous prime is 68706871997. The next prime is 68706872077. The reversal of 68706872050 is 5027860786.
It is a junction number, because it is equal to n+sod(n) for n = 68706871985 and 68706872003.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248449 + ... + 446251.
It is an arithmetic number, because the mean of its divisors is an integer number (5325575994).
Almost surely, 268706872050 is an apocalyptic number.
68706872050 is a deficient number, since it is larger than the sum of its proper divisors (59106951806).
68706872050 is a wasteful number, since it uses less digits than its factorization.
68706872050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 204762 (or 204757 counting only the distinct ones).
The product of its (nonzero) digits is 1128960, while the sum is 49.
The spelling of 68706872050 in words is "sixty-eight billion, seven hundred six million, eight hundred seventy-two thousand, fifty".
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