Base | Representation |
---|---|
bin | 111111100001000101… |
… | …011100100101011111 |
3 | 20112001000212011100022 |
4 | 333201011130211133 |
5 | 2104133401421342 |
6 | 51155300022355 |
7 | 4633036220141 |
oct | 774105344537 |
9 | 215030764308 |
10 | 68200810847 |
11 | 26a18641694 |
12 | 112743919bb |
13 | 657b77c6a0 |
14 | 342dab0c91 |
15 | 1b926b79d2 |
hex | fe115c95f |
68200810847 has 4 divisors (see below), whose sum is σ = 73447027080. Its totient is φ = 62954594616.
The previous prime is 68200810831. The next prime is 68200810877. The reversal of 68200810847 is 74801800286.
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 68200810847 - 24 = 68200810831 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68200810798 and 68200810807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68200810877) 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, 2623108097 + ... + 2623108122.
It is an arithmetic number, because the mean of its divisors is an integer number (18361756770).
Almost surely, 268200810847 is an apocalyptic number.
68200810847 is a deficient number, since it is larger than the sum of its proper divisors (5246216233).
68200810847 is a wasteful number, since it uses less digits than its factorization.
68200810847 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5246216232.
The product of its (nonzero) digits is 172032, while the sum is 44.
The spelling of 68200810847 in words is "sixty-eight billion, two hundred million, eight hundred ten thousand, eight hundred forty-seven".
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