Search a number
-
+
82805333481 = 3313235912631
BaseRepresentation
bin100110100011110010…
…1010001110111101001
321220201211211210002000
41031013211101313221
52324041131132411
6102012405401213
75660664502263
oct1150745216751
9256654753060
1082805333481
11321324a7702
121406b409209
137a683ab860
14401758ab33
15224990d956
hex1347951de9

82805333481 has 16 divisors (see below), whose sum is σ = 132111073920. Its totient is φ = 50957128080.

The previous prime is 82805333461. The next prime is 82805333497. The reversal of 82805333481 is 18433350828.

82805333481 is a `hidden beast` number, since 8 + 2 + 8 + 0 + 533 + 34 + 81 = 666.

It is not a de Polignac number, because 82805333481 - 27 = 82805333353 is a prime.

It is a super-2 number, since 2×828053334812 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (82805333431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117955965 + ... + 117956666.

It is an arithmetic number, because the mean of its divisors is an integer number (8256942120).

Almost surely, 282805333481 is an apocalyptic number.

It is an amenable number.

82805333481 is a deficient number, since it is larger than the sum of its proper divisors (49305740439).

82805333481 is a wasteful number, since it uses less digits than its factorization.

82805333481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235912653 (or 235912647 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 82805333481 in words is "eighty-two billion, eight hundred five million, three hundred thirty-three thousand, four hundred eighty-one".

Divisors: 1 3 9 13 27 39 117 351 235912631 707737893 2123213679 3066864203 6369641037 9200592609 27601777827 82805333481