Base | Representation |
---|---|
bin | 101111100011000111… |
… | …1001111100000111001 |
3 | 100202120020020011120011 |
4 | 1133012033033200321 |
5 | 3133110143213111 |
6 | 114524142301521 |
7 | 10243245542443 |
oct | 1370617174071 |
9 | 322506204504 |
10 | 102110132281 |
11 | 3a339564783 |
12 | 179585878a1 |
13 | 9823a37421 |
14 | 4d293c7493 |
15 | 29c9604021 |
hex | 17c63cf839 |
102110132281 has 2 divisors, whose sum is σ = 102110132282. Its totient is φ = 102110132280.
The previous prime is 102110132269. The next prime is 102110132351. The reversal of 102110132281 is 182231011201.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 77887879056 + 24222253225 = 279084^2 + 155635^2 .
It is a cyclic number.
It is not a de Polignac number, because 102110132281 - 215 = 102110099513 is a prime.
It is a super-2 number, since 2×1021101322812 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (102110132981) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055066140 + 51055066141.
It is an arithmetic number, because the mean of its divisors is an integer number (51055066141).
Almost surely, 2102110132281 is an apocalyptic number.
It is an amenable number.
102110132281 is a deficient number, since it is larger than the sum of its proper divisors (1).
102110132281 is an equidigital number, since it uses as much as digits as its factorization.
102110132281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 192, while the sum is 22.
Adding to 102110132281 its reverse (182231011201), we get a palindrome (284341143482).
The spelling of 102110132281 in words is "one hundred two billion, one hundred ten million, one hundred thirty-two thousand, two hundred eighty-one".
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