| Base | Representation |
|---|---|
| bin | 111011110010101… |
| … | …0011011101110001 |
| 3 | 12011211010221222101 |
| 4 | 1313211103131301 |
| 5 | 13102101032021 |
| 6 | 531025140401 |
| 7 | 100500665101 |
| oct | 16745233561 |
| 9 | 5154127871 |
| 10 | 2006267761 |
| 11 | 93a538733 |
| 12 | 47ba8a701 |
| 13 | 25c8601b4 |
| 14 | 15064b201 |
| 15 | bb1eea91 |
| hex | 77953771 |
2006267761 has 4 divisors (see below), whose sum is σ = 2060491252. Its totient is φ = 1952044272.
The previous prime is 2006267729. The next prime is 2006267771. The reversal of 2006267761 is 1677626002.
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 1774010161 + 232257600 = 42119^2 + 15240^2 .
It is a cyclic number.
It is not a de Polignac number, because 2006267761 - 25 = 2006267729 is a prime.
It is a super-2 number, since 2×20062677612 = 8050220657655906242, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 54223453 = 2006267761 / (2 + 0 + 0 + 6 + 2 + 6 + 7 + 7 + 6 + 1).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2006267761.
It is not an unprimeable number, because it can be changed into a prime (2006267701) 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 3 ways as a sum of consecutive naturals, for example, 27111690 + ... + 27111763.
It is an arithmetic number, because the mean of its divisors is an integer number (515122813).
Almost surely, 22006267761 is an apocalyptic number.
It is an amenable number.
2006267761 is a deficient number, since it is larger than the sum of its proper divisors (54223491).
2006267761 is an equidigital number, since it uses as much as digits as its factorization.
2006267761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54223490.
The product of its (nonzero) digits is 42336, while the sum is 37.
The square root of 2006267761 is about 44791.3804319536. The cubic root of 2006267761 is about 1261.2358247374.
The spelling of 2006267761 in words is "two billion, six million, two hundred sixty-seven thousand, seven hundred sixty-one".
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