Base | Representation |
---|---|
bin | 111111110101001000… |
… | …001110111000101101 |
3 | 20112220110121200102112 |
4 | 333311020032320231 |
5 | 2110330443213420 |
6 | 51252511333405 |
7 | 4644261420521 |
oct | 776510167055 |
9 | 215813550375 |
10 | 68537085485 |
11 | 27080441810 |
12 | 11348b21265 |
13 | 660333b46b |
14 | 3462607d81 |
15 | 1bb1e8e8c5 |
hex | ff520ee2d |
68537085485 has 8 divisors (see below), whose sum is σ = 89721275616. Its totient is φ = 49845153040.
The previous prime is 68537085481. The next prime is 68537085493. The reversal of 68537085485 is 58458073586.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68537085485 - 22 = 68537085481 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 (68537085481) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623064359 + ... + 623064468.
It is an arithmetic number, because the mean of its divisors is an integer number (11215159452).
Almost surely, 268537085485 is an apocalyptic number.
It is an amenable number.
68537085485 is a deficient number, since it is larger than the sum of its proper divisors (21184190131).
68537085485 is a wasteful number, since it uses less digits than its factorization.
68537085485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1246128843.
The product of its (nonzero) digits is 32256000, while the sum is 59.
The spelling of 68537085485 in words is "sixty-eight billion, five hundred thirty-seven million, eighty-five thousand, four hundred eighty-five".
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