Base | Representation |
---|---|
bin | 100000000100011010… |
… | …0100000100000100001 |
3 | 20120202111021101211112 |
4 | 1000020310200200201 |
5 | 2112020032142410 |
6 | 51345352353105 |
7 | 4655412513104 |
oct | 1001064404041 |
9 | 216674241745 |
10 | 68867459105 |
11 | 2722a981365 |
12 | 1141b6a5795 |
13 | 6656912303 |
14 | 349444673b |
15 | 1bd0e9d105 |
hex | 1008d20821 |
68867459105 has 8 divisors (see below), whose sum is σ = 82666005864. Its totient is φ = 55077264000.
The previous prime is 68867459069. The next prime is 68867459107. The reversal of 68867459105 is 50195476886.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 14511334369 + 54356124736 = 120463^2 + 233144^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68867459105 - 210 = 68867458081 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68867459107) 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, 2069756 + ... + 2102765.
It is an arithmetic number, because the mean of its divisors is an integer number (10333250733).
Almost surely, 268867459105 is an apocalyptic number.
It is an amenable number.
68867459105 is a deficient number, since it is larger than the sum of its proper divisors (13798546759).
68867459105 is a wasteful number, since it uses less digits than its factorization.
68867459105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4175827.
The product of its (nonzero) digits is 14515200, while the sum is 59.
The spelling of 68867459105 in words is "sixty-eight billion, eight hundred sixty-seven million, four hundred fifty-nine thousand, one hundred five".
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