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82389460873 = 2393320910729
BaseRepresentation
bin100110010111011001…
…0110110011110001001
321212122212022021002211
41030232302312132021
52322213200221443
6101503232025121
75644454601556
oct1145662663611
9255585267084
1082389460873
1131a39780435
1213b740921a1
137a001a06a5
143db8253a2d
15222316219d
hex132ecb6789

82389460873 has 8 divisors (see below), whose sum is σ = 82457260200. Its totient is φ = 82321694208.

The previous prime is 82389460843. The next prime is 82389460883. The reversal of 82389460873 is 37806498328.

It can be written as a sum of positive squares in 4 ways, for example, as 4399403584 + 77990057289 = 66328^2 + 279267^2 .

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-82389460873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82389460843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7673773 + ... + 7684501.

It is an arithmetic number, because the mean of its divisors is an integer number (10307157525).

Almost surely, 282389460873 is an apocalyptic number.

It is an amenable number.

82389460873 is a deficient number, since it is larger than the sum of its proper divisors (67799327).

82389460873 is a wasteful number, since it uses less digits than its factorization.

82389460873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16331.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 82389460873 in words is "eighty-two billion, three hundred eighty-nine million, four hundred sixty thousand, eight hundred seventy-three".

Divisors: 1 2393 3209 10729 7679137 25674497 34429361 82389460873