Search a number
-
+
82469481 = 3191446833
BaseRepresentation
bin1001110101001…
…10001001101001
312202011212212020
410322212021221
5132103010411
612103335053
72020656543
oct472461151
9182155766
1082469481
11426085a6
1223751489
1314116413
14ad4a693
157390606
hex4ea6269

82469481 has 8 divisors (see below), whose sum is σ = 115746720. Its totient is φ = 52085952.

The previous prime is 82469461. The next prime is 82469483. The reversal of 82469481 is 18496428.

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

It is not a de Polignac number, because 82469481 - 25 = 82469449 is a prime.

It is a super-2 number, since 2×824694812 = 13602430592818722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (82469483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 723360 + ... + 723473.

It is an arithmetic number, because the mean of its divisors is an integer number (14468340).

Almost surely, 282469481 is an apocalyptic number.

82469481 is the 5744-th centered pentagonal number.

It is an amenable number.

82469481 is a deficient number, since it is larger than the sum of its proper divisors (33277239).

82469481 is a wasteful number, since it uses less digits than its factorization.

82469481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446855.

The product of its digits is 110592, while the sum is 42.

The square root of 82469481 is about 9081.2708912354. The cubic root of 82469481 is about 435.2756978674.

The spelling of 82469481 in words is "eighty-two million, four hundred sixty-nine thousand, four hundred eighty-one".

Divisors: 1 3 19 57 1446833 4340499 27489827 82469481