Base | Representation |
---|---|
bin | 111011010111011… |
… | …1111100101001101 |
3 | 12010211100122011221 |
4 | 1312232333211031 |
5 | 13034424434131 |
6 | 525400043341 |
7 | 100235660134 |
oct | 16656774515 |
9 | 5124318157 |
10 | 1992030541 |
11 | 9324a4036 |
12 | 477163551 |
13 | 259916ac7 |
14 | 14c7c291b |
15 | b9d3b411 |
hex | 76bbf94d |
1992030541 has 2 divisors, whose sum is σ = 1992030542. Its totient is φ = 1992030540.
The previous prime is 1992030499. The next prime is 1992030571. The reversal of 1992030541 is 1450302991.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1146093316 + 845937225 = 33854^2 + 29085^2 .
It is an emirp because it is prime and its reverse (1450302991) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1992030541 - 27 = 1992030413 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1992030497 and 1992030506.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1992030571) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996015270 + 996015271.
It is an arithmetic number, because the mean of its divisors is an integer number (996015271).
Almost surely, 21992030541 is an apocalyptic number.
It is an amenable number.
1992030541 is a deficient number, since it is larger than the sum of its proper divisors (1).
1992030541 is an equidigital number, since it uses as much as digits as its factorization.
1992030541 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9720, while the sum is 34.
The square root of 1992030541 is about 44632.1693512650. The cubic root of 1992030541 is about 1258.2453406456.
The spelling of 1992030541 in words is "one billion, nine hundred ninety-two million, thirty thousand, five hundred forty-one".
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