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288164081 is a prime number
BaseRepresentation
bin10001001011010…
…000100011110001
3202002020020210202
4101023100203301
51042232222311
644332204545
710066232342
oct2113204361
9662206722
10288164081
1113872aa37
1280609755
13479156ba
142a3b20c9
151a471e3b
hex112d08f1

288164081 has 2 divisors, whose sum is σ = 288164082. Its totient is φ = 288164080.

The previous prime is 288164057. The next prime is 288164101. The reversal of 288164081 is 180461882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288150625 + 13456 = 16975^2 + 116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-288164081 is a prime.

It is a super-2 number, since 2×2881640812 = 166077075157149122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (288164581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144082040 + 144082041.

It is an arithmetic number, because the mean of its divisors is an integer number (144082041).

Almost surely, 2288164081 is an apocalyptic number.

It is an amenable number.

288164081 is a deficient number, since it is larger than the sum of its proper divisors (1).

288164081 is an equidigital number, since it uses as much as digits as its factorization.

288164081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 288164081 is about 16975.3963429429. The cubic root of 288164081 is about 660.5108388225.

The spelling of 288164081 in words is "two hundred eighty-eight million, one hundred sixty-four thousand, eighty-one".