Search a number
-
+
82090375 = 535312391
BaseRepresentation
bin1001110010010…
…01100110000111
312201110121211021
410321021212013
5132003343000
612051252011
72014520353
oct471114607
9181417737
1082090375
1142379794
12235aa007
13140129b3
14ac8c463
15731811a
hex4e49987

82090375 has 16 divisors (see below), whose sum is σ = 104390208. Its totient is φ = 64428000.

The previous prime is 82090361. The next prime is 82090391. The reversal of 82090375 is 57309028.

It is not a de Polignac number, because 82090375 - 29 = 82089863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82090375.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 430 + ... + 12820.

It is an arithmetic number, because the mean of its divisors is an integer number (6524388).

Almost surely, 282090375 is an apocalyptic number.

82090375 is a deficient number, since it is larger than the sum of its proper divisors (22299833).

82090375 is a wasteful number, since it uses less digits than its factorization.

82090375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12459 (or 12449 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 82090375 is about 9060.3738885324. The cubic root of 82090375 is about 434.6076966899.

The spelling of 82090375 in words is "eighty-two million, ninety thousand, three hundred seventy-five".

Divisors: 1 5 25 53 125 265 1325 6625 12391 61955 309775 656723 1548875 3283615 16418075 82090375