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82665241 is a prime number
BaseRepresentation
bin1001110110101…
…01111100011001
312202112211101121
410323111330121
5132130241431
612111445241
72022433351
oct473257431
9182484347
1082665241
114273168a
1223826821
1314184559
14ad9bb61
1573cd611
hex4ed5f19

82665241 has 2 divisors, whose sum is σ = 82665242. Its totient is φ = 82665240.

The previous prime is 82665239. The next prime is 82665259. The reversal of 82665241 is 14256628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50979600 + 31685641 = 7140^2 + 5629^2 .

It is a cyclic number.

It is not a de Polignac number, because 82665241 - 21 = 82665239 is a prime.

Together with 82665239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 82665197 and 82665206.

It is not a weakly prime, because it can be changed into another prime (82665211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41332620 + 41332621.

It is an arithmetic number, because the mean of its divisors is an integer number (41332621).

Almost surely, 282665241 is an apocalyptic number.

It is an amenable number.

82665241 is a deficient number, since it is larger than the sum of its proper divisors (1).

82665241 is an equidigital number, since it uses as much as digits as its factorization.

82665241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 82665241 is about 9092.0427297720. The cubic root of 82665241 is about 435.6198342152.

The spelling of 82665241 in words is "eighty-two million, six hundred sixty-five thousand, two hundred forty-one".