Base | Representation |
---|---|
bin | 101001001111… |
… | …110101001001 |
3 | 202100100022001 |
4 | 221033311021 |
5 | 10232001440 |
6 | 1023431001 |
7 | 160623016 |
oct | 51176511 |
9 | 22310261 |
10 | 10812745 |
11 | 6115859 |
12 | 3755461 |
13 | 2317798 |
14 | 161670d |
15 | e38b9a |
hex | a4fd49 |
10812745 has 4 divisors (see below), whose sum is σ = 12975300. Its totient is φ = 8650192.
The previous prime is 10812727. The next prime is 10812751. The reversal of 10812745 is 54721801.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54721801 = 1993 ⋅27457.
It can be written as a sum of positive squares in 2 ways, for example, as 6335289 + 4477456 = 2517^2 + 2116^2 .
It is a cyclic number.
It is not a de Polignac number, because 10812745 - 25 = 10812713 is a prime.
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 3 ways as a sum of consecutive naturals, for example, 1081270 + ... + 1081279.
It is an arithmetic number, because the mean of its divisors is an integer number (3243825).
Almost surely, 210812745 is an apocalyptic number.
It is an amenable number.
10812745 is a deficient number, since it is larger than the sum of its proper divisors (2162555).
10812745 is an equidigital number, since it uses as much as digits as its factorization.
10812745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2162554.
The product of its (nonzero) digits is 2240, while the sum is 28.
The square root of 10812745 is about 3288.2738632906. The cubic root of 10812745 is about 221.1288057035.
The spelling of 10812745 in words is "ten million, eight hundred twelve thousand, seven hundred forty-five".
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