Search a number
-
+
489693 = 32347151
BaseRepresentation
bin1110111100011011101
3220212201210
41313203131
5111132233
614255033
74106451
oct1674335
9825653
10489693
11304a06
121b7479
13141b79
14ca661
159a163
hex778dd

489693 has 16 divisors (see below), whose sum is σ = 700416. Its totient is φ = 303600.

The previous prime is 489691. The next prime is 489733. The reversal of 489693 is 396984.

It is not a de Polignac number, because 489693 - 21 = 489691 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489693.

It is not an unprimeable number, because it can be changed into a prime (489691) 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 15 ways as a sum of consecutive naturals, for example, 3168 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (43776).

2489693 is an apocalyptic number.

It is an amenable number.

489693 is a deficient number, since it is larger than the sum of its proper divisors (210723).

489693 is a wasteful number, since it uses less digits than its factorization.

489693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its digits is 46656, while the sum is 39.

The square root of 489693 is about 699.7806799276. The cubic root of 489693 is about 78.8208835199.

The spelling of 489693 in words is "four hundred eighty-nine thousand, six hundred ninety-three".

Divisors: 1 3 23 47 69 141 151 453 1081 3243 3473 7097 10419 21291 163231 489693