Base | Representation |
---|---|
bin | 111110011111101… |
… | …1101010110100001 |
3 | 12102010220011001001 |
4 | 1330333131112201 |
5 | 13243313310311 |
6 | 544030112001 |
7 | 102652202005 |
oct | 17477352641 |
9 | 5363804031 |
10 | 2097010081 |
11 | 986786791 |
12 | 4a634b601 |
13 | 2755b1c8a |
14 | 15c70c705 |
15 | c41764c1 |
hex | 7cfdd5a1 |
2097010081 has 2 divisors, whose sum is σ = 2097010082. Its totient is φ = 2097010080.
The previous prime is 2097010033. The next prime is 2097010087. The reversal of 2097010081 is 1800107902.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1603281681 + 493728400 = 40041^2 + 22220^2 .
It is a cyclic number.
It is not a de Polignac number, because 2097010081 - 29 = 2097009569 is a prime.
It is a super-2 number, since 2×20970100812 = 8794902559631253122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2097010087) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048505040 + 1048505041.
It is an arithmetic number, because the mean of its divisors is an integer number (1048505041).
Almost surely, 22097010081 is an apocalyptic number.
It is an amenable number.
2097010081 is a deficient number, since it is larger than the sum of its proper divisors (1).
2097010081 is an equidigital number, since it uses as much as digits as its factorization.
2097010081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1008, while the sum is 28.
The square root of 2097010081 is about 45793.1226386670. The cubic root of 2097010081 is about 1279.9711258542.
Adding to 2097010081 its reverse (1800107902), we get a palindrome (3897117983).
The spelling of 2097010081 in words is "two billion, ninety-seven million, ten thousand, eighty-one".
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