Base | Representation |
---|---|
bin | 1100000100011110… |
… | …01111010111100001 |
3 | 121201121021010112211 |
4 | 12002033033113201 |
5 | 101232340003411 |
6 | 2551000522121 |
7 | 316403044453 |
oct | 60217172741 |
9 | 17647233484 |
10 | 6480000481 |
11 | 28258782a9 |
12 | 130a180341 |
13 | 7c366aa16 |
14 | 45687a2d3 |
15 | 27dd50221 |
hex | 1823cf5e1 |
6480000481 has 4 divisors (see below), whose sum is σ = 6537345732. Its totient is φ = 6422655232.
The previous prime is 6480000479. The next prime is 6480000493. The reversal of 6480000481 is 1840000846.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 2026440256 + 4453560225 = 45016^2 + 66735^2 .
It is a cyclic number.
It is not a de Polignac number, because 6480000481 - 21 = 6480000479 is a prime.
It is a super-2 number, since 2×64800004812 = 83980812467520462722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6480000181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28672456 + ... + 28672681.
It is an arithmetic number, because the mean of its divisors is an integer number (1634336433).
Almost surely, 26480000481 is an apocalyptic number.
It is an amenable number.
6480000481 is a deficient number, since it is larger than the sum of its proper divisors (57345251).
6480000481 is a wasteful number, since it uses less digits than its factorization.
6480000481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57345250.
The product of its (nonzero) digits is 6144, while the sum is 31.
The square root of 6480000481 is about 80498.4501776276. The cubic root of 6480000481 is about 1864.3395497013.
The spelling of 6480000481 in words is "six billion, four hundred eighty million, four hundred eighty-one", and thus it is an aban number.
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