Base | Representation |
---|---|
bin | 111111110110100010… |
… | …110100111011011111 |
3 | 20112222010022020122012 |
4 | 333312202310323133 |
5 | 2110403033144041 |
6 | 51255120341435 |
7 | 4645000322126 |
oct | 776642647337 |
9 | 215863266565 |
10 | 68560834271 |
11 | 27092892606 |
12 | 11354a7487b |
13 | 6608234cb7 |
14 | 346582aabd |
15 | 1bb40d13eb |
hex | ff68b4edf |
68560834271 has 4 divisors (see below), whose sum is σ = 70925001000. Its totient is φ = 66196667544.
The previous prime is 68560834261. The next prime is 68560834273. The reversal of 68560834271 is 17243806586.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17243806586 = 2 ⋅8621903293.
It is a cyclic number.
It is not a de Polignac number, because 68560834271 - 222 = 68556639967 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 (68560834273) 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, 1182083321 + ... + 1182083378.
It is an arithmetic number, because the mean of its divisors is an integer number (17731250250).
Almost surely, 268560834271 is an apocalyptic number.
68560834271 is a deficient number, since it is larger than the sum of its proper divisors (2364166729).
68560834271 is a wasteful number, since it uses less digits than its factorization.
68560834271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2364166728.
The product of its (nonzero) digits is 1935360, while the sum is 50.
The spelling of 68560834271 in words is "sixty-eight billion, five hundred sixty million, eight hundred thirty-four thousand, two hundred seventy-one".
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