Base | Representation |
---|---|
bin | 101111110100010110… |
… | …1100101101101001001 |
3 | 100211001112112221112101 |
4 | 1133220231211231021 |
5 | 3140301224402331 |
6 | 115101403113401 |
7 | 10263500646235 |
oct | 1375055455511 |
9 | 324045487471 |
10 | 102688512841 |
11 | 3a605a96642 |
12 | 17a9a212861 |
13 | 98b6803745 |
14 | 4d821435c5 |
15 | 2a102a1061 |
hex | 17e8b65b49 |
102688512841 has 2 divisors, whose sum is σ = 102688512842. Its totient is φ = 102688512840.
The previous prime is 102688512803. The next prime is 102688512853. The reversal of 102688512841 is 148215886201.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 101228967225 + 1459545616 = 318165^2 + 38204^2 .
It is an emirp because it is prime and its reverse (148215886201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102688512841 - 225 = 102654958409 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 102688512791 and 102688512800.
It is not a weakly prime, because it can be changed into another prime (102688512341) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51344256420 + 51344256421.
It is an arithmetic number, because the mean of its divisors is an integer number (51344256421).
Almost surely, 2102688512841 is an apocalyptic number.
It is an amenable number.
102688512841 is a deficient number, since it is larger than the sum of its proper divisors (1).
102688512841 is an equidigital number, since it uses as much as digits as its factorization.
102688512841 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 245760, while the sum is 46.
The spelling of 102688512841 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, eight hundred forty-one".
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