Base | Representation |
---|---|
bin | 1000001000010… |
… | …10100101010111 |
3 | 11202022221220020 |
4 | 10010022211113 |
5 | 114424411131 |
6 | 10433440223 |
7 | 1455461061 |
oct | 404124527 |
9 | 152287806 |
10 | 68200791 |
11 | 3555229a |
12 | 1aa10073 |
13 | 1118b8c9 |
14 | 90b4731 |
15 | 5ec2996 |
hex | 410a957 |
68200791 has 4 divisors (see below), whose sum is σ = 90934392. Its totient is φ = 45467192.
The previous prime is 68200763. The next prime is 68200793. The reversal of 68200791 is 19700286.
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 68200791 - 211 = 68198743 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68200793) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11366796 + ... + 11366801.
It is an arithmetic number, because the mean of its divisors is an integer number (22733598).
Almost surely, 268200791 is an apocalyptic number.
68200791 is a deficient number, since it is larger than the sum of its proper divisors (22733601).
68200791 is a wasteful number, since it uses less digits than its factorization.
68200791 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22733600.
The product of its (nonzero) digits is 6048, while the sum is 33.
The square root of 68200791 is about 8258.3770197297. The cubic root of 68200791 is about 408.5668603205.
The spelling of 68200791 in words is "sixty-eight million, two hundred thousand, seven hundred ninety-one".
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