Base | Representation |
---|---|
bin | 100000000000100011… |
… | …0000000010011001001 |
3 | 20120102110100110110000 |
4 | 1000001012000103021 |
5 | 2111233340444131 |
6 | 51324442113213 |
7 | 4652246620011 |
oct | 1000106002311 |
9 | 216373313400 |
10 | 68737828041 |
11 | 27173791653 |
12 | 113a41ab809 |
13 | 6635ac573c |
14 | 3481140c41 |
15 | 1bc48e3ce6 |
hex | 10011804c9 |
68737828041 has 15 divisors (see below), whose sum is σ = 102685959453. Its totient is φ = 45823645620.
The previous prime is 68737828039. The next prime is 68737828073. The reversal of 68737828041 is 14082873786.
It is a happy number.
The square root of 68737828041 is 262179.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 68737828041 - 21 = 68737828039 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68737823041) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2345046 + ... + 2374176.
Almost surely, 268737828041 is an apocalyptic number.
68737828041 is the 262179-th square number.
68737828041 is the 131090-th centered octagonal number.
It is an amenable number.
68737828041 is a deficient number, since it is larger than the sum of its proper divisors (33948131412).
68737828041 is an frugal number, since it uses more digits than its factorization.
68737828041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58274 (or 29134 counting only the distinct ones).
The product of its (nonzero) digits is 3612672, while the sum is 54.
The spelling of 68737828041 in words is "sixty-eight billion, seven hundred thirty-seven million, eight hundred twenty-eight thousand, forty-one".
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