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286868342 = 2143434171
BaseRepresentation
bin10001000110010…
…100001101110110
3201222210102101102
4101012110031312
51041414241332
644244330102
710052224565
oct2106241566
9658712342
10286868342
11137a25482
12800a3932
13475809a7
142a155bdc
151a2b8062
hex11194376

286868342 has 4 divisors (see below), whose sum is σ = 430302516. Its totient is φ = 143434170.

The previous prime is 286868341. The next prime is 286868347. The reversal of 286868342 is 243868682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243868682 = 2121934341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286868341) 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, 71717084 + ... + 71717087.

It is an arithmetic number, because the mean of its divisors is an integer number (107575629).

Almost surely, 2286868342 is an apocalyptic number.

286868342 is a deficient number, since it is larger than the sum of its proper divisors (143434174).

286868342 is a wasteful number, since it uses less digits than its factorization.

286868342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143434173.

The product of its digits is 884736, while the sum is 47.

The square root of 286868342 is about 16937.1881373503. The cubic root of 286868342 is about 659.5193485460.

The spelling of 286868342 in words is "two hundred eighty-six million, eight hundred sixty-eight thousand, three hundred forty-two".

Divisors: 1 2 143434171 286868342