Base | Representation |
---|---|
bin | 1011000100111000… |
… | …0010110111010101 |
3 | 21200012200200211122 |
4 | 2301032002313111 |
5 | 22042122431411 |
6 | 1211011013325 |
7 | 133452125243 |
oct | 26116026725 |
9 | 7605620748 |
10 | 2973248981 |
11 | 1296359a6a |
12 | 6ab89a245 |
13 | 384ca9331 |
14 | 202c41793 |
15 | 12605c9db |
hex | b1382dd5 |
2973248981 has 2 divisors, whose sum is σ = 2973248982. Its totient is φ = 2973248980.
The previous prime is 2973248963. The next prime is 2973249001. The reversal of 2973248981 is 1898423792.
2973248981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2717536900 + 255712081 = 52130^2 + 15991^2 .
It is a cyclic number.
It is not a de Polignac number, because 2973248981 - 210 = 2973247957 is a prime.
It is a super-2 number, since 2×29732489812 = 17680419006035076722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2973248921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486624490 + 1486624491.
It is an arithmetic number, because the mean of its divisors is an integer number (1486624491).
Almost surely, 22973248981 is an apocalyptic number.
It is an amenable number.
2973248981 is a deficient number, since it is larger than the sum of its proper divisors (1).
2973248981 is an equidigital number, since it uses as much as digits as its factorization.
2973248981 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1741824, while the sum is 53.
The square root of 2973248981 is about 54527.5066457288. The cubic root of 2973248981 is about 1437.9499153351.
The spelling of 2973248981 in words is "two billion, nine hundred seventy-three million, two hundred forty-eight thousand, nine hundred eighty-one".
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