Base | Representation |
---|---|
bin | 110000110110… |
… | …001011000111 |
3 | 220002112220010 |
4 | 300312023013 |
5 | 11234223212 |
6 | 1134241303 |
7 | 213560541 |
oct | 60661307 |
9 | 26075803 |
10 | 12804807 |
11 | 7256494 |
12 | 4356233 |
13 | 2864412 |
14 | 19b4691 |
15 | 11ce03c |
hex | c362c7 |
12804807 has 4 divisors (see below), whose sum is σ = 17073080. Its totient is φ = 8536536.
The previous prime is 12804793. The next prime is 12804809. The reversal of 12804807 is 70840821.
12804807 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: 70840821 = 3 ⋅23613607.
It is not a de Polignac number, because 12804807 - 28 = 12804551 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 (12804809) 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, 2134132 + ... + 2134137.
It is an arithmetic number, because the mean of its divisors is an integer number (4268270).
Almost surely, 212804807 is an apocalyptic number.
12804807 is a deficient number, since it is larger than the sum of its proper divisors (4268273).
12804807 is an equidigital number, since it uses as much as digits as its factorization.
12804807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4268272.
The product of its (nonzero) digits is 3584, while the sum is 30.
The square root of 12804807 is about 3578.3804996115. The cubic root of 12804807 is about 233.9506982114.
The spelling of 12804807 in words is "twelve million, eight hundred four thousand, eight hundred seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •