Base | Representation |
---|---|
bin | 111011000100011… |
… | …0110001001010001 |
3 | 12010010112120120222 |
4 | 1312020312021101 |
5 | 13024344433132 |
6 | 524401442425 |
7 | 100054660223 |
oct | 16610661121 |
9 | 5103476528 |
10 | 1982030417 |
11 | 927893874 |
12 | 473940415 |
13 | 257825183 |
14 | 14b33c413 |
15 | b9013412 |
hex | 76236251 |
1982030417 has 2 divisors, whose sum is σ = 1982030418. Its totient is φ = 1982030416.
The previous prime is 1982030383. The next prime is 1982030419. The reversal of 1982030417 is 7140302891.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1357480336 + 624550081 = 36844^2 + 24991^2 .
It is an emirp because it is prime and its reverse (7140302891) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1982030417 - 220 = 1980981841 is a prime.
Together with 1982030419, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (1982030419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991015208 + 991015209.
It is an arithmetic number, because the mean of its divisors is an integer number (991015209).
Almost surely, 21982030417 is an apocalyptic number.
It is an amenable number.
1982030417 is a deficient number, since it is larger than the sum of its proper divisors (1).
1982030417 is an equidigital number, since it uses as much as digits as its factorization.
1982030417 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 1982030417 is about 44520.0001909254. Note that the first 3 decimals coincide. The cubic root of 1982030417 is about 1256.1363161665.
The spelling of 1982030417 in words is "one billion, nine hundred eighty-two million, thirty thousand, four hundred seventeen".
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