Base | Representation |
---|---|
bin | 111011110000101… |
… | …1000110100101011 |
3 | 12011202012210201001 |
4 | 1313201120310223 |
5 | 13101320204011 |
6 | 530551135431 |
7 | 100456161025 |
oct | 16741306453 |
9 | 5152183631 |
10 | 2005241131 |
11 | 9399a7383 |
12 | 47b674577 |
13 | 25c590b1a |
14 | 150461015 |
15 | bb09a7c1 |
hex | 77858d2b |
2005241131 has 4 divisors (see below), whose sum is σ = 2092425552. Its totient is φ = 1918056712.
The previous prime is 2005241129. The next prime is 2005241141. The reversal of 2005241131 is 1311425002.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2005241131 - 21 = 2005241129 is a prime.
It is a super-2 number, since 2×20052411312 = 8041983986908318322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2005241099 and 2005241108.
It is not an unprimeable number, because it can be changed into a prime (2005241101) 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, 43592176 + ... + 43592221.
It is an arithmetic number, because the mean of its divisors is an integer number (523106388).
Almost surely, 22005241131 is an apocalyptic number.
2005241131 is a deficient number, since it is larger than the sum of its proper divisors (87184421).
2005241131 is an equidigital number, since it uses as much as digits as its factorization.
2005241131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87184420.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 2005241131 is about 44779.9188364606. The cubic root of 2005241131 is about 1261.0206584668.
Adding to 2005241131 its reverse (1311425002), we get a palindrome (3316666133).
The spelling of 2005241131 in words is "two billion, five million, two hundred forty-one thousand, one hundred thirty-one".
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