Base | Representation |
---|---|
bin | 1110110111010100… |
… | …01001111001110011 |
3 | 202121011012121002211 |
4 | 13123222021321303 |
5 | 112320414300321 |
6 | 3355511552551 |
7 | 401520551314 |
oct | 73352117163 |
9 | 22534177084 |
10 | 7980228211 |
11 | 34256a362a |
12 | 166868b757 |
13 | 9a240c837 |
14 | 559bdc60b |
15 | 31a8e20e1 |
hex | 1dba89e73 |
7980228211 has 2 divisors, whose sum is σ = 7980228212. Its totient is φ = 7980228210.
The previous prime is 7980228187. The next prime is 7980228241. The reversal of 7980228211 is 1128220897.
It is a weak prime.
It is an emirp because it is prime and its reverse (1128220897) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7980228211 - 27 = 7980228083 is a prime.
It is not a weakly prime, because it can be changed into another prime (7980228241) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990114105 + 3990114106.
It is an arithmetic number, because the mean of its divisors is an integer number (3990114106).
Almost surely, 27980228211 is an apocalyptic number.
7980228211 is a deficient number, since it is larger than the sum of its proper divisors (1).
7980228211 is an equidigital number, since it uses as much as digits as its factorization.
7980228211 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32256, while the sum is 40.
The square root of 7980228211 is about 89332.1230633192. The cubic root of 7980228211 is about 1998.3509916761.
The spelling of 7980228211 in words is "seven billion, nine hundred eighty million, two hundred twenty-eight thousand, two hundred eleven".
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