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286270081 is a prime number
BaseRepresentation
bin10001000100000…
…010001010000001
3201221200000201121
4101010002022001
51041241120311
644223432241
710044153436
oct2104021201
9657600647
10286270081
11137656a49
127ba55681
13474015a6
142a03bb8d
151a1eab71
hex11102281

286270081 has 2 divisors, whose sum is σ = 286270082. Its totient is φ = 286270080.

The previous prime is 286270067. The next prime is 286270097. The reversal of 286270081 is 180072682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286151056 + 119025 = 16916^2 + 345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-286270081 is a prime.

It is a super-2 number, since 2×2862700812 = 163901118551493122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (286270001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143135040 + 143135041.

It is an arithmetic number, because the mean of its divisors is an integer number (143135041).

Almost surely, 2286270081 is an apocalyptic number.

It is an amenable number.

286270081 is a deficient number, since it is larger than the sum of its proper divisors (1).

286270081 is an equidigital number, since it uses as much as digits as its factorization.

286270081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 286270081 is about 16919.5177531749. The cubic root of 286270081 is about 659.0605558383.

The spelling of 286270081 in words is "two hundred eighty-six million, two hundred seventy thousand, eighty-one".