Base | Representation |
---|---|
bin | 111111110000011000… |
… | …110000001010010101 |
3 | 20112200220220211211021 |
4 | 333300120300022111 |
5 | 2110200111430010 |
6 | 51240550241141 |
7 | 4642304255404 |
oct | 776030601225 |
9 | 215626824737 |
10 | 68457530005 |
11 | 2703a544587 |
12 | 113263561b1 |
13 | 65bca05507 |
14 | 3455c1963b |
15 | 1ba9ec78da |
hex | ff0630295 |
68457530005 has 8 divisors (see below), whose sum is σ = 86472669600. Its totient is φ = 51883601616.
The previous prime is 68457530003. The next prime is 68457530017. The reversal of 68457530005 is 50003575486.
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 68457530005 - 21 = 68457530003 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68457530003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360302695 + ... + 360302884.
It is an arithmetic number, because the mean of its divisors is an integer number (10809083700).
Almost surely, 268457530005 is an apocalyptic number.
It is an amenable number.
68457530005 is a deficient number, since it is larger than the sum of its proper divisors (18015139595).
68457530005 is a wasteful number, since it uses less digits than its factorization.
68457530005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 720605603.
The product of its (nonzero) digits is 504000, while the sum is 43.
The spelling of 68457530005 in words is "sixty-eight billion, four hundred fifty-seven million, five hundred thirty thousand, five".
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