Base | Representation |
---|---|
bin | 10111011011010010010010… |
… | …010111000101110010000101 |
3 | 111111210120202222102100211221 |
4 | 113123102102113011302011 |
5 | 102001021202020213411 |
6 | 1003043215550400341 |
7 | 30462452456646361 |
oct | 2733222227056205 |
9 | 444716688370757 |
10 | 103030131022981 |
11 | 2a912918a77438 |
12 | b67bb1a5000b1 |
13 | 4564913224216 |
14 | 1b629836dc2a1 |
15 | bda0b43be071 |
hex | 5db4925c5c85 |
103030131022981 has 2 divisors, whose sum is σ = 103030131022982. Its totient is φ = 103030131022980.
The previous prime is 103030131022979. The next prime is 103030131023051. The reversal of 103030131022981 is 189220131030301.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 81986396873956 + 21043734149025 = 9054634^2 + 4587345^2 .
It is a cyclic number.
It is not a de Polignac number, because 103030131022981 - 21 = 103030131022979 is a prime.
It is a super-2 number, since 2×1030301310229812 (a number of 29 digits) contains 22 as substring.
Together with 103030131022979, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (103030131022961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51515065511490 + 51515065511491.
It is an arithmetic number, because the mean of its divisors is an integer number (51515065511491).
Almost surely, 2103030131022981 is an apocalyptic number.
It is an amenable number.
103030131022981 is a deficient number, since it is larger than the sum of its proper divisors (1).
103030131022981 is an equidigital number, since it uses as much as digits as its factorization.
103030131022981 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7776, while the sum is 34.
The spelling of 103030131022981 in words is "one hundred three trillion, thirty billion, one hundred thirty-one million, twenty-two thousand, nine hundred eighty-one".
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