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286868053 = 1092631817
BaseRepresentation
bin10001000110010…
…100001001010101
3201222210101222201
4101012110021111
51041414234203
644244324501
710052224003
oct2106241125
9658711881
10286868053
11137a2523a
12800a3731
1347580814
142a155a73
151a2b7e1d
hex11194255

286868053 has 4 divisors (see below), whose sum is σ = 289499980. Its totient is φ = 284236128.

The previous prime is 286868041. The next prime is 286868083. The reversal of 286868053 is 350868682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201157489 + 85710564 = 14183^2 + 9258^2 .

It is a cyclic number.

It is not a de Polignac number, because 286868053 - 213 = 286859861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 286867994 and 286868012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286868033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315800 + ... + 1316017.

It is an arithmetic number, because the mean of its divisors is an integer number (72374995).

Almost surely, 2286868053 is an apocalyptic number.

It is an amenable number.

286868053 is a deficient number, since it is larger than the sum of its proper divisors (2631927).

286868053 is a wasteful number, since it uses less digits than its factorization.

286868053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631926.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 286868053 is about 16937.1796058258. The cubic root of 286868053 is about 659.5191270726.

The spelling of 286868053 in words is "two hundred eighty-six million, eight hundred sixty-eight thousand, fifty-three".

Divisors: 1 109 2631817 286868053