Base | Representation |
---|---|
bin | 1000000111101… |
… | …01111010001001 |
3 | 11202011122201201 |
4 | 10003311322021 |
5 | 114414203410 |
6 | 10431544201 |
7 | 1454656141 |
oct | 403657211 |
9 | 152148651 |
10 | 68116105 |
11 | 354a4702 |
12 | 1a98b061 |
13 | 1115c1b5 |
14 | 9091921 |
15 | 5ea783a |
hex | 40f5e89 |
68116105 has 8 divisors (see below), whose sum is σ = 81787464. Its totient is φ = 54460800.
The previous prime is 68116079. The next prime is 68116163. The reversal of 68116105 is 50161186.
It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 68112009 = 64^2 + 8253^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68116105 - 25 = 68116073 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9415 + ... + 14995.
It is an arithmetic number, because the mean of its divisors is an integer number (10223433).
Almost surely, 268116105 is an apocalyptic number.
It is an amenable number.
68116105 is a deficient number, since it is larger than the sum of its proper divisors (13671359).
68116105 is a wasteful number, since it uses less digits than its factorization.
68116105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8027.
The product of its (nonzero) digits is 1440, while the sum is 28.
The square root of 68116105 is about 8253.2481484565. The cubic root of 68116105 is about 408.3976823017.
The spelling of 68116105 in words is "sixty-eight million, one hundred sixteen thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •