Base | Representation |
---|---|
bin | 1000001111111000… |
… | …0000101100101001 |
3 | 12201022011110112122 |
4 | 2003332000230221 |
5 | 14013300233311 |
6 | 1003411121025 |
7 | 105603202505 |
oct | 20376005451 |
9 | 5638143478 |
10 | 2214071081 |
11 | a36870412 |
12 | 5195a3175 |
13 | 29391a241 |
14 | 1700a1305 |
15 | ce59b0db |
hex | 83f80b29 |
2214071081 has 2 divisors, whose sum is σ = 2214071082. Its totient is φ = 2214071080.
The previous prime is 2214071051. The next prime is 2214071107. The reversal of 2214071081 is 1801704122.
It is an a-pointer prime, because the next prime (2214071107) can be obtained adding 2214071081 to its sum of digits (26).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2213232025 + 839056 = 47045^2 + 916^2 .
It is a cyclic number.
It is not a de Polignac number, because 2214071081 - 26 = 2214071017 is a prime.
It is a super-2 number, since 2×22140710812 = 9804221503441017122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 2214071081.
It is not a weakly prime, because it can be changed into another prime (2214071051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107035540 + 1107035541.
It is an arithmetic number, because the mean of its divisors is an integer number (1107035541).
Almost surely, 22214071081 is an apocalyptic number.
It is an amenable number.
2214071081 is a deficient number, since it is larger than the sum of its proper divisors (1).
2214071081 is an equidigital number, since it uses as much as digits as its factorization.
2214071081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 896, while the sum is 26.
The square root of 2214071081 is about 47053.9167445177. The cubic root of 2214071081 is about 1303.3583936431.
The spelling of 2214071081 in words is "two billion, two hundred fourteen million, seventy-one thousand, eighty-one".
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