Base | Representation |
---|---|
bin | 11001110000011… |
… | …00010010111011 |
3 | 120001112211111211 |
4 | 30320030102323 |
5 | 420302311034 |
6 | 33234503551 |
7 | 5232311563 |
oct | 1470142273 |
9 | 501484454 |
10 | 216057019 |
11 | 100a5a922 |
12 | 60434bb7 |
13 | 359b9ab9 |
14 | 209a1da3 |
15 | 13e7bd64 |
hex | ce0c4bb |
216057019 has 2 divisors, whose sum is σ = 216057020. Its totient is φ = 216057018.
The previous prime is 216057007. The next prime is 216057031. The reversal of 216057019 is 910750612.
216057019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a balanced prime because it is at equal distance from previous prime (216057007) and next prime (216057031).
It is a cyclic number.
It is not a de Polignac number, because 216057019 - 27 = 216056891 is a prime.
It is a super-2 number, since 2×2160570192 = 93361270918332722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (216057119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108028509 + 108028510.
It is an arithmetic number, because the mean of its divisors is an integer number (108028510).
Almost surely, 2216057019 is an apocalyptic number.
216057019 is a deficient number, since it is larger than the sum of its proper divisors (1).
216057019 is an equidigital number, since it uses as much as digits as its factorization.
216057019 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3780, while the sum is 31.
The square root of 216057019 is about 14698.8781544715. The cubic root of 216057019 is about 600.0527907255.
The spelling of 216057019 in words is "two hundred sixteen million, fifty-seven thousand, nineteen".
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