Base | Representation |
---|---|
bin | 10000111110011… |
… | …101001000100001 |
3 | 201211220201201211 |
4 | 100332131020201 |
5 | 1040402321323 |
6 | 44132230121 |
7 | 10025553121 |
oct | 2076351041 |
9 | 654821654 |
10 | 284807713 |
11 | 136848283 |
12 | 7b46b341 |
13 | 4700ba98 |
14 | 29b7ac81 |
15 | 1a00c70d |
hex | 10f9d221 |
284807713 has 4 divisors (see below), whose sum is σ = 285024960. Its totient is φ = 284590468.
The previous prime is 284807711. The next prime is 284807723. The reversal of 284807713 is 317708482.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 284807713 - 21 = 284807711 is a prime.
It is a super-2 number, since 2×2848077132 = 162230866768580738, which contains 22 as substring.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (284807711) 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 3 ways as a sum of consecutive naturals, for example, 106645 + ... + 109282.
It is an arithmetic number, because the mean of its divisors is an integer number (71256240).
Almost surely, 2284807713 is an apocalyptic number.
It is an amenable number.
284807713 is a deficient number, since it is larger than the sum of its proper divisors (217247).
284807713 is a wasteful number, since it uses less digits than its factorization.
284807713 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 217246.
The product of its (nonzero) digits is 75264, while the sum is 40.
The square root of 284807713 is about 16876.2470057771. The cubic root of 284807713 is about 657.9364019611.
The spelling of 284807713 in words is "two hundred eighty-four million, eight hundred seven thousand, seven hundred thirteen".
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