Base | Representation |
---|---|
bin | 101001011101… |
… | …100001001101 |
3 | 202110012012122 |
4 | 221131201031 |
5 | 10240300223 |
6 | 1024542325 |
7 | 161245334 |
oct | 51354115 |
9 | 22405178 |
10 | 10868813 |
11 | 615399a |
12 | 37819a5 |
13 | 2337167 |
14 | 162cd1b |
15 | e4a5c8 |
hex | a5d84d |
10868813 has 4 divisors (see below), whose sum is σ = 11133948. Its totient is φ = 10603680.
The previous prime is 10868791. The next prime is 10868839. The reversal of 10868813 is 31886801.
It is a happy number.
10868813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31886801 = 1439 ⋅22159.
It can be written as a sum of positive squares in 2 ways, for example, as 769129 + 10099684 = 877^2 + 3178^2 .
It is a cyclic number.
It is not a de Polignac number, because 10868813 - 26 = 10868749 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 (10868843) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132506 + ... + 132587.
It is an arithmetic number, because the mean of its divisors is an integer number (2783487).
Almost surely, 210868813 is an apocalyptic number.
It is an amenable number.
10868813 is a deficient number, since it is larger than the sum of its proper divisors (265135).
10868813 is an equidigital number, since it uses as much as digits as its factorization.
10868813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 265134.
The product of its (nonzero) digits is 9216, while the sum is 35.
The square root of 10868813 is about 3296.7882855895. The cubic root of 10868813 is about 221.5103579548.
It can be divided in two parts, 108 and 68813, that added together give a cube (68921 = 413).
The spelling of 10868813 in words is "ten million, eight hundred sixty-eight thousand, eight hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •