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84318793 = 1317381533
BaseRepresentation
bin1010000011010…
…01101001001001
312212122211122021
411001221221021
5133041200133
612211124441
72042461246
oct501515111
9185584567
1084318793
1143660a59
12242a3721
13146130a0
14b2ac5cd
15760852d
hex5069a49

84318793 has 8 divisors (see below), whose sum is σ = 96146568. Its totient is φ = 73254144.

The previous prime is 84318781. The next prime is 84318797. The reversal of 84318793 is 39781348.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2108304 + 82210489 = 1452^2 + 9067^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84318793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84318797) 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, 190546 + ... + 190987.

It is an arithmetic number, because the mean of its divisors is an integer number (12018321).

Almost surely, 284318793 is an apocalyptic number.

It is an amenable number.

84318793 is a deficient number, since it is larger than the sum of its proper divisors (11827775).

84318793 is a wasteful number, since it uses less digits than its factorization.

84318793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381563.

The product of its digits is 145152, while the sum is 43.

The square root of 84318793 is about 9182.5265041817. The cubic root of 84318793 is about 438.5052463480.

The spelling of 84318793 in words is "eighty-four million, three hundred eighteen thousand, seven hundred ninety-three".

Divisors: 1 13 17 221 381533 4959929 6486061 84318793