Base | Representation |
---|---|
bin | 100000000101010001… |
… | …0001001010001111111 |
3 | 20120211111100120122222 |
4 | 1000022202021101333 |
5 | 2112044411343212 |
6 | 51352300355555 |
7 | 4656212015201 |
oct | 1001242112177 |
9 | 216744316588 |
10 | 68896199807 |
11 | 27245121706 |
12 | 11429245bbb |
13 | 665c866046 |
14 | 34981a8771 |
15 | 1bd3778c72 |
hex | 100a88947f |
68896199807 has 4 divisors (see below), whose sum is σ = 69839983440. Its totient is φ = 67952416176.
The previous prime is 68896199711. The next prime is 68896199819. The reversal of 68896199807 is 70899169886.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 68896199807 - 220 = 68895151231 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68896199857) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471891707 + ... + 471891852.
It is an arithmetic number, because the mean of its divisors is an integer number (17459995860).
Almost surely, 268896199807 is an apocalyptic number.
68896199807 is a deficient number, since it is larger than the sum of its proper divisors (943783633).
68896199807 is an equidigital number, since it uses as much as digits as its factorization.
68896199807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 943783632.
The product of its (nonzero) digits is 94058496, while the sum is 71.
The spelling of 68896199807 in words is "sixty-eight billion, eight hundred ninety-six million, one hundred ninety-nine thousand, eight hundred seven".
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