Base | Representation |
---|---|
bin | 1000001101100… |
… | …01011001010001 |
3 | 11210121200011002 |
4 | 10012301121101 |
5 | 120113242144 |
6 | 10500231345 |
7 | 1464335063 |
oct | 406613121 |
9 | 153550132 |
10 | 68884049 |
11 | 35979673 |
12 | 1b09b555 |
13 | 1136a8c0 |
14 | 9211733 |
15 | 60aa14e |
hex | 41b1651 |
68884049 has 8 divisors (see below), whose sum is σ = 74558400. Its totient is φ = 63263376.
The previous prime is 68884043. The next prime is 68884087. The reversal of 68884049 is 94048886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68884049 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68883994 and 68884012.
It is not an unprimeable number, because it can be changed into a prime (68884043) 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, 10727 + ... + 15900.
It is an arithmetic number, because the mean of its divisors is an integer number (9319800).
Almost surely, 268884049 is an apocalyptic number.
It is an amenable number.
68884049 is a deficient number, since it is larger than the sum of its proper divisors (5674351).
68884049 is a wasteful number, since it uses less digits than its factorization.
68884049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26839.
The product of its (nonzero) digits is 442368, while the sum is 47.
The square root of 68884049 is about 8299.6414982817. The cubic root of 68884049 is about 409.9267150396.
The spelling of 68884049 in words is "sixty-eight million, eight hundred eighty-four thousand, forty-nine".
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