Base | Representation |
---|---|
bin | 1101101111010000100100… |
… | …11111111001000010101101 |
3 | 10221222011011012222200011202 |
4 | 12313220102133321002231 |
5 | 12424434323214410221 |
6 | 144130443101455245 |
7 | 6235452322411562 |
oct | 667502237710255 |
9 | 127864135880152 |
10 | 30211110310061 |
11 | 969850719368a |
12 | 347b147871525 |
13 | 13b1b84499295 |
14 | 766322c54869 |
15 | 375cd882bd0b |
hex | 1b7a127f90ad |
30211110310061 has 2 divisors, whose sum is σ = 30211110310062. Its totient is φ = 30211110310060.
The previous prime is 30211110310019. The next prime is 30211110310081. The reversal of 30211110310061 is 16001301111203.
It is an a-pointer prime, because the next prime (30211110310081) can be obtained adding 30211110310061 to its sum of digits (20).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30177113956900 + 33996353161 = 5493370^2 + 184381^2 .
It is a cyclic number.
It is not a de Polignac number, because 30211110310061 - 218 = 30211110047917 is a prime.
It is a super-2 number, since 2×302111103100612 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30211110310081) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105555155030 + 15105555155031.
It is an arithmetic number, because the mean of its divisors is an integer number (15105555155031).
Almost surely, 230211110310061 is an apocalyptic number.
It is an amenable number.
30211110310061 is a deficient number, since it is larger than the sum of its proper divisors (1).
30211110310061 is an equidigital number, since it uses as much as digits as its factorization.
30211110310061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 20.
Adding to 30211110310061 its reverse (16001301111203), we get a palindrome (46212411421264).
The spelling of 30211110310061 in words is "thirty trillion, two hundred eleven billion, one hundred ten million, three hundred ten thousand, sixty-one".
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