Base | Representation |
---|---|
bin | 1001000010110… |
… | …10011111001001 |
3 | 12021202111110211 |
4 | 10201122133021 |
5 | 123410234410 |
6 | 11310041121 |
7 | 1610603545 |
oct | 441323711 |
9 | 167674424 |
10 | 75868105 |
11 | 39909915 |
12 | 214a91a1 |
13 | 12944791 |
14 | a10ca25 |
15 | 69d968a |
hex | 485a7c9 |
75868105 has 12 divisors (see below), whose sum is σ = 93033540. Its totient is φ = 59394464.
The previous prime is 75868103. The next prime is 75868109. The reversal of 75868105 is 50186857.
It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 65351056 = 3243^2 + 8084^2 .
It is not a de Polignac number, because 75868105 - 21 = 75868103 is a prime.
It is not an unprimeable number, because it can be changed into a prime (75868103) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 7611 + ... + 14479.
It is an arithmetic number, because the mean of its divisors is an integer number (7752795).
Almost surely, 275868105 is an apocalyptic number.
It is an amenable number.
75868105 is a deficient number, since it is larger than the sum of its proper divisors (17165435).
75868105 is an equidigital number, since it uses as much as digits as its factorization.
75868105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6968 (or 6921 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 40.
The square root of 75868105 is about 8710.2299051173. The cubic root of 75868105 is about 423.3371797172.
The spelling of 75868105 in words is "seventy-five million, eight hundred sixty-eight thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •