Search a number
-
+
490312800 = 25325268099
BaseRepresentation
bin11101001110011…
…001010001100000
31021011121110201100
4131032121101200
52001010002200
6120353034400
715102406245
oct3516312140
91234543640
10490312800
1123185029a
12118255a00
137a772a23
14491935cc
152d0a2d00
hex1d399460

490312800 has 108 divisors (see below), whose sum is σ = 1728990900. Its totient is φ = 130748160.

The previous prime is 490312783. The next prime is 490312807. The reversal of 490312800 is 8213094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490312807) 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 17 ways as a sum of consecutive naturals, for example, 26850 + ... + 41249.

It is an arithmetic number, because the mean of its divisors is an integer number (16009175).

Almost surely, 2490312800 is an apocalyptic number.

490312800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490312800 is an abundant number, since it is smaller than the sum of its proper divisors (1238678100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490312800 is a wasteful number, since it uses less digits than its factorization.

490312800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68125 (or 68109 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 490312800 is about 22143.0079257539. The cubic root of 490312800 is about 788.5412379296.

Adding to 490312800 its reverse (8213094), we get a palindrome (498525894).

The spelling of 490312800 in words is "four hundred ninety million, three hundred twelve thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 144 150 160 180 200 225 240 288 300 360 400 450 480 600 720 800 900 1200 1440 1800 2400 3600 7200 68099 136198 204297 272396 340495 408594 544792 612891 680990 817188 1021485 1089584 1225782 1361980 1634376 1702475 2042970 2179168 2451564 2723960 3064455 3268752 3404950 4085940 4903128 5107425 5447920 6128910 6537504 6809900 8171880 9806256 10214850 10895840 12257820 13619800 15322275 16343760 19612512 20429700 24515640 27239600 30644550 32687520 40859400 49031280 54479200 61289100 81718800 98062560 122578200 163437600 245156400 490312800