Base | Representation |
---|---|
bin | 1000001001101… |
… | …11010000000111 |
3 | 11202200020212112 |
4 | 10010313100013 |
5 | 120001240001 |
6 | 10441411235 |
7 | 1460152352 |
oct | 404672007 |
9 | 152606775 |
10 | 68383751 |
11 | 356677a7 |
12 | 1aa99b1b |
13 | 11223c77 |
14 | 9121299 |
15 | 600bcbb |
hex | 4137407 |
68383751 has 8 divisors (see below), whose sum is σ = 69723120. Its totient is φ = 67053888.
The previous prime is 68383729. The next prime is 68383781. The reversal of 68383751 is 15738386.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68383751 - 214 = 68367367 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68383699 and 68383708.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68383781) 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 7 ways as a sum of consecutive naturals, for example, 13115 + ... + 17571.
It is an arithmetic number, because the mean of its divisors is an integer number (8715390).
Almost surely, 268383751 is an apocalyptic number.
68383751 is a deficient number, since it is larger than the sum of its proper divisors (1339369).
68383751 is a wasteful number, since it uses less digits than its factorization.
68383751 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4753.
The product of its digits is 120960, while the sum is 41.
The square root of 68383751 is about 8269.4468376065. The cubic root of 68383751 is about 408.9318836912.
The spelling of 68383751 in words is "sixty-eight million, three hundred eighty-three thousand, seven hundred fifty-one".
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