Base | Representation |
---|---|
bin | 1100010011010101… |
… | …01010100000000101 |
3 | 122001021202222010201 |
4 | 12021222222200011 |
5 | 102011241130041 |
6 | 3011212050501 |
7 | 322445300053 |
oct | 61152524005 |
9 | 18037688121 |
10 | 6604630021 |
11 | 288a161320 |
12 | 1343a63a31 |
13 | 813425c02 |
14 | 46923d1d3 |
15 | 289c6c631 |
hex | 189aaa805 |
6604630021 has 32 divisors (see below), whose sum is σ = 7857451008. Its totient is φ = 5489816640.
The previous prime is 6604630009. The next prime is 6604630037. The reversal of 6604630021 is 1200364066.
It is not a de Polignac number, because 6604630021 - 215 = 6604597253 is a prime.
It is a super-2 number, since 2×66046300212 = 87242275428588920882, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6604630091) 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 31 ways as a sum of consecutive naturals, for example, 504855 + ... + 517771.
It is an arithmetic number, because the mean of its divisors is an integer number (245545344).
Almost surely, 26604630021 is an apocalyptic number.
It is an amenable number.
6604630021 is a deficient number, since it is larger than the sum of its proper divisors (1252820987).
6604630021 is a wasteful number, since it uses less digits than its factorization.
6604630021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13041.
The product of its (nonzero) digits is 5184, while the sum is 28.
The square root of 6604630021 is about 81268.8748599364. The cubic root of 6604630021 is about 1876.2159835958.
Adding to 6604630021 its reverse (1200364066), we get a palindrome (7804994087).
The spelling of 6604630021 in words is "six billion, six hundred four million, six hundred thirty thousand, twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •