Base | Representation |
---|---|
bin | 111011110001001… |
… | …0110110110110011 |
3 | 12011202200201020201 |
4 | 1313202112312303 |
5 | 13101401321334 |
6 | 531000420031 |
7 | 100461266560 |
oct | 16742266663 |
9 | 5152621221 |
10 | 2005495219 |
11 | 93a060272 |
12 | 47b777617 |
13 | 25c64c680 |
14 | 1504c9867 |
15 | bb0eac14 |
hex | 77896db3 |
2005495219 has 32 divisors (see below), whose sum is σ = 2645153280. Its totient is φ = 1475338752.
The previous prime is 2005495213. The next prime is 2005495241. The reversal of 2005495219 is 9125945002.
It is a cyclic number.
It is not a de Polignac number, because 2005495219 - 23 = 2005495211 is a prime.
It is a super-2 number, since 2×20054952192 = 8044022146863715922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2005495211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120592 + ... + 136210.
It is an arithmetic number, because the mean of its divisors is an integer number (82661040).
Almost surely, 22005495219 is an apocalyptic number.
2005495219 is a deficient number, since it is larger than the sum of its proper divisors (639658061).
2005495219 is a wasteful number, since it uses less digits than its factorization.
2005495219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15739.
The product of its (nonzero) digits is 32400, while the sum is 37.
The square root of 2005495219 is about 44782.7558218563. The cubic root of 2005495219 is about 1261.0739183432.
The spelling of 2005495219 in words is "two billion, five million, four hundred ninety-five thousand, two hundred nineteen".
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