Base | Representation |
---|---|
bin | 1001010101010100… |
… | …1010010000001101 |
3 | 20110121021002010102 |
4 | 2111111022100031 |
5 | 20112332232310 |
6 | 1052334220445 |
7 | 116041066556 |
oct | 22525122015 |
9 | 6417232112 |
10 | 2505352205 |
11 | 107622a214 |
12 | 59b054725 |
13 | 30c084635 |
14 | 19aa4532d |
15 | e9e368a5 |
hex | 9554a40d |
2505352205 has 4 divisors (see below), whose sum is σ = 3006422652. Its totient is φ = 2004281760.
The previous prime is 2505352193. The next prime is 2505352309. The reversal of 2505352205 is 5022535052.
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 654029476 + 1851322729 = 25574^2 + 43027^2 .
It is not a de Polignac number, because 2505352205 - 218 = 2505090061 is a prime.
It is a Duffinian number.
It is a congruent number.
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, 250535216 + ... + 250535225.
It is an arithmetic number, because the mean of its divisors is an integer number (751605663).
Almost surely, 22505352205 is an apocalyptic number.
It is an amenable number.
2505352205 is a deficient number, since it is larger than the sum of its proper divisors (501070447).
2505352205 is an equidigital number, since it uses as much as digits as its factorization.
2505352205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 501070446.
The product of its (nonzero) digits is 15000, while the sum is 29.
The square root of 2505352205 is about 50053.4934345246. The cubic root of 2505352205 is about 1358.1766592434.
Adding to 2505352205 its reverse (5022535052), we get a palindrome (7527887257).
The spelling of 2505352205 in words is "two billion, five hundred five million, three hundred fifty-two thousand, two hundred five".
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