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10865081 is a prime number
BaseRepresentation
bin101001011100…
…100110111001
3202110000002102
4221130212321
510240140311
61024513145
7161231423
oct51344671
922400072
1010865081
116151107
12377b7b5
132335556
14162b813
15e4943b
hexa5c9b9

10865081 has 2 divisors, whose sum is σ = 10865082. Its totient is φ = 10865080.

The previous prime is 10865077. The next prime is 10865083. The reversal of 10865081 is 18056801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9709456 + 1155625 = 3116^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 10865081 - 22 = 10865077 is a prime.

It is a super-2 number, since 2×108650812 = 236099970273122, which contains 22 as substring.

Together with 10865083, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (10865083) 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, 5432540 + 5432541.

It is an arithmetic number, because the mean of its divisors is an integer number (5432541).

Almost surely, 210865081 is an apocalyptic number.

It is an amenable number.

10865081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10865081 is an equidigital number, since it uses as much as digits as its factorization.

10865081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 10865081 is about 3296.2222315857. Note that the first 4 decimals coincide. The cubic root of 10865081 is about 221.4850018805.

The spelling of 10865081 in words is "ten million, eight hundred sixty-five thousand, eighty-one".