Base | Representation |
---|---|
bin | 100100101010000… |
… | …0101001111111011 |
3 | 10011201110112101001 |
4 | 1021110011033323 |
5 | 10004340014042 |
6 | 322015105431 |
7 | 42323560114 |
oct | 11124051773 |
9 | 3151415331 |
10 | 1230001147 |
11 | 581338081 |
12 | 2a3b12277 |
13 | 167a99b3b |
14 | b94dd20b |
15 | 72eb4bb7 |
hex | 495053fb |
1230001147 has 2 divisors, whose sum is σ = 1230001148. Its totient is φ = 1230001146.
The previous prime is 1230001141. The next prime is 1230001169. The reversal of 1230001147 is 7411000321.
It is a weak prime.
It is an emirp because it is prime and its reverse (7411000321) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1230001147 is a prime.
It is not a weakly prime, because it can be changed into another prime (1230001141) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615000573 + 615000574.
It is an arithmetic number, because the mean of its divisors is an integer number (615000574).
Almost surely, 21230001147 is an apocalyptic number.
1230001147 is a deficient number, since it is larger than the sum of its proper divisors (1).
1230001147 is an equidigital number, since it uses as much as digits as its factorization.
1230001147 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 168, while the sum is 19.
The square root of 1230001147 is about 35071.3721858726. The cubic root of 1230001147 is about 1071.4416027376.
Adding to 1230001147 its reverse (7411000321), we get a palindrome (8641001468).
The spelling of 1230001147 in words is "one billion, two hundred thirty million, one thousand, one hundred forty-seven".
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