Base | Representation |
---|---|
bin | 100000000010111111… |
… | …1111100011111111111 |
3 | 20120122012012121121021 |
4 | 1000011333330133333 |
5 | 2111420423010240 |
6 | 51340542045011 |
7 | 4654266262606 |
oct | 1000577743777 |
9 | 216565177537 |
10 | 68820125695 |
11 | 27206192042 |
12 | 11407879767 |
13 | 6649b7b889 |
14 | 348c044a3d |
15 | 1bcbc4d54a |
hex | 1005ffc7ff |
68820125695 has 16 divisors (see below), whose sum is σ = 83780440128. Its totient is φ = 54259188480.
The previous prime is 68820125659. The next prime is 68820125711. The reversal of 68820125695 is 59652102886.
It is not a de Polignac number, because 68820125695 - 29 = 68820125183 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891997 + ... + 966073.
It is an arithmetic number, because the mean of its divisors is an integer number (5236277508).
Almost surely, 268820125695 is an apocalyptic number.
68820125695 is a deficient number, since it is larger than the sum of its proper divisors (14960314433).
68820125695 is a wasteful number, since it uses less digits than its factorization.
68820125695 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76770.
The product of its (nonzero) digits is 2073600, while the sum is 52.
The spelling of 68820125695 in words is "sixty-eight billion, eight hundred twenty million, one hundred twenty-five thousand, six hundred ninety-five".
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