Base | Representation |
---|---|
bin | 101111100011000111… |
… | …0110111010110000001 |
3 | 100202120020001010202111 |
4 | 1133012032313112001 |
5 | 3133110132031111 |
6 | 114524140215321 |
7 | 10243244651014 |
oct | 1370616672601 |
9 | 322506033674 |
10 | 102110033281 |
11 | 3a3394a7363 |
12 | 1795853a541 |
13 | 9823a01349 |
14 | 4d2939d37b |
15 | 29c95d4a21 |
hex | 17c63b7581 |
102110033281 has 2 divisors, whose sum is σ = 102110033282. Its totient is φ = 102110033280.
The previous prime is 102110033279. The next prime is 102110033303. The reversal of 102110033281 is 182330011201.
It is a happy number.
It is an a-pointer prime, because the next prime (102110033303) can be obtained adding 102110033281 to its sum of digits (22).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 97291591056 + 4818442225 = 311916^2 + 69415^2 .
It is a cyclic number.
It is not a de Polignac number, because 102110033281 - 21 = 102110033279 is a prime.
It is a super-2 number, since 2×1021100332812 (a number of 23 digits) contains 22 as substring.
Together with 102110033279, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (102110033381) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055016640 + 51055016641.
It is an arithmetic number, because the mean of its divisors is an integer number (51055016641).
Almost surely, 2102110033281 is an apocalyptic number.
It is an amenable number.
102110033281 is a deficient number, since it is larger than the sum of its proper divisors (1).
102110033281 is an equidigital number, since it uses as much as digits as its factorization.
102110033281 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 22.
Adding to 102110033281 its reverse (182330011201), we get a palindrome (284440044482).
The spelling of 102110033281 in words is "one hundred two billion, one hundred ten million, thirty-three thousand, two hundred eighty-one".
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