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284037393 = 3487194413
BaseRepresentation
bin10000111011100…
…001000100010001
3201210110121001110
4100323201010101
51040203144033
644103523533
710016164233
oct2073410421
9653417043
10284037393
11136371552
127b1595a9
1346acc283
1429a1a253
1519e09363
hex10ee1111

284037393 has 8 divisors (see below), whose sum is σ = 379496128. Its totient is φ = 188968464.

The previous prime is 284037367. The next prime is 284037401. The reversal of 284037393 is 393730482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 284037393 - 25 = 284037361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284037353) 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 7 ways as a sum of consecutive naturals, for example, 95746 + ... + 98667.

It is an arithmetic number, because the mean of its divisors is an integer number (47437016).

Almost surely, 2284037393 is an apocalyptic number.

It is an amenable number.

284037393 is a deficient number, since it is larger than the sum of its proper divisors (95458735).

284037393 is a wasteful number, since it uses less digits than its factorization.

284037393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194903.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 284037393 is about 16853.4089430002. The cubic root of 284037393 is about 657.3426923954.

The spelling of 284037393 in words is "two hundred eighty-four million, thirty-seven thousand, three hundred ninety-three".

Divisors: 1 3 487 1461 194413 583239 94679131 284037393