Base | Representation |
---|---|
bin | 100100101010010… |
… | …0010110010011101 |
3 | 10011201200200100022 |
4 | 1021110202302131 |
5 | 10004402402031 |
6 | 322021441525 |
7 | 42324602633 |
oct | 11124426235 |
9 | 3151620308 |
10 | 1230122141 |
11 | 58140aa76 |
12 | 2a3b702a5 |
13 | 167b0cc31 |
14 | b9531353 |
15 | 72eda97b |
hex | 49522c9d |
1230122141 has 2 divisors, whose sum is σ = 1230122142. Its totient is φ = 1230122140.
The previous prime is 1230122123. The next prime is 1230122143. The reversal of 1230122141 is 1412210321.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 897242116 + 332880025 = 29954^2 + 18245^2 .
It is a cyclic number.
It is not a de Polignac number, because 1230122141 - 218 = 1229859997 is a prime.
Together with 1230122143, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1230122143) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615061070 + 615061071.
It is an arithmetic number, because the mean of its divisors is an integer number (615061071).
Almost surely, 21230122141 is an apocalyptic number.
It is an amenable number.
1230122141 is a deficient number, since it is larger than the sum of its proper divisors (1).
1230122141 is an equidigital number, since it uses as much as digits as its factorization.
1230122141 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96, while the sum is 17.
The square root of 1230122141 is about 35073.0971116039. The cubic root of 1230122141 is about 1071.4767338037.
Adding to 1230122141 its reverse (1412210321), we get a palindrome (2642332462).
The spelling of 1230122141 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, one hundred forty-one".
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