Base | Representation |
---|---|
bin | 100000010000111… |
… | …0011111000011001 |
3 | 2210110010000222111 |
4 | 1000201303320121 |
5 | 4204121330311 |
6 | 255231552321 |
7 | 35553664015 |
oct | 10041637031 |
9 | 2713100874 |
10 | 1082605081 |
11 | 506114248 |
12 | 26268b6a1 |
13 | 1433a022c |
14 | a3ad1545 |
15 | 6509bd21 |
hex | 40873e19 |
1082605081 has 2 divisors, whose sum is σ = 1082605082. Its totient is φ = 1082605080.
The previous prime is 1082605079. The next prime is 1082605093. The reversal of 1082605081 is 1805062801.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1016589456 + 66015625 = 31884^2 + 8125^2 .
It is a cyclic number.
It is not a de Polignac number, because 1082605081 - 21 = 1082605079 is a prime.
It is a super-3 number, since 3×10826050813 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
Together with 1082605079, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (1082605001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541302540 + 541302541.
It is an arithmetic number, because the mean of its divisors is an integer number (541302541).
Almost surely, 21082605081 is an apocalyptic number.
It is an amenable number.
1082605081 is a deficient number, since it is larger than the sum of its proper divisors (1).
1082605081 is an equidigital number, since it uses as much as digits as its factorization.
1082605081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3840, while the sum is 31.
The square root of 1082605081 is about 32902.9646232676. The cubic root of 1082605081 is about 1026.8098363311.
Adding to 1082605081 its reverse (1805062801), we get a palindrome (2887667882).
The spelling of 1082605081 in words is "one billion, eighty-two million, six hundred five thousand, eighty-one".
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