Base | Representation |
---|---|
bin | 111011100110101… |
… | …1100001011010011 |
3 | 12011101101010200001 |
4 | 1313031130023103 |
5 | 13044000340422 |
6 | 530243110431 |
7 | 100363551511 |
oct | 16715341323 |
9 | 5141333601 |
10 | 2000011987 |
11 | 936a55676 |
12 | 479972417 |
13 | 25b47c95c |
14 | 14d89d4b1 |
15 | ba8b6227 |
hex | 7735c2d3 |
2000011987 has 2 divisors, whose sum is σ = 2000011988. Its totient is φ = 2000011986.
The previous prime is 2000011933. The next prime is 2000012017. The reversal of 2000011987 is 7891100002.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2000011987 - 27 = 2000011859 is a prime.
It is not a weakly prime, because it can be changed into another prime (2000011787) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000005993 + 1000005994.
It is an arithmetic number, because the mean of its divisors is an integer number (1000005994).
Almost surely, 22000011987 is an apocalyptic number.
2000011987 is a deficient number, since it is larger than the sum of its proper divisors (1).
2000011987 is an equidigital number, since it uses as much as digits as its factorization.
2000011987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1008, while the sum is 28.
The square root of 2000011987 is about 44721.4935685292. The cubic root of 2000011987 is about 1259.9235670021.
Adding to 2000011987 its reverse (7891100002), we get a palindrome (9891111989).
The spelling of 2000011987 in words is "two billion, eleven thousand, nine hundred eighty-seven".
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