21084490 is an even 8-digits composite number following 21084489
and preceding 21084491 . In scientific notation, it is written as 2.1084490 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 32 positive divisors.
There are 6730560 positive integers (up to 21084490) that are relatively prime to 21084490.
21084490 has 32 divisors, whose sum is 38900736
The reverse of 21084490 is 09448012
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eighty-four thousand four hundred ninety
Scientific notation
2.1084490 × 10^7
Engineering notation
2.1084490 × 10^6
Prime Factorization
2 × 133 × 5 × 83 × 191
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21084490
Product of the distinct prime numbers
The prime factorization of 21084490 is 2 × 133 × 5 × 83 × 191.
Since it has a total of 5 prime factors.
4 , 8 , 48 , 73 , 456 , 925 , 6135 , 4174 , 65771 , 71212 , 926854 , 318151 , 615281 , 1263637 , 2865730 , 56586848 , 200867156 , 578527671 , 2998152320 , 7097461113
n×2
42168980
n×3
63253470
n×4
84337960
n×5
105422450
n÷2
10542245
n÷3
7028163.3333333
n÷3
5271122.5
n÷5
4216898
n2
444555718560100
n3
9.3732306024232E+21
n4
1.9762978690449E+29
n5
4.1669232656898E+36
2 √n
4591.785055945
3 √n
276.26192491673
4 √n
67.762711397531
5 √n
29.160342464964
1 , 2 , 5 , 10 , 83 , 133 , 166 , 191 , 266 , 382 , 415 , 665 , 830 , 955 , 1330 , 1910 , 11039 , 15853 , 22078 , 25403 , 31706 , 50806 , 55195 , 79265 , 110390 , 127015 , 158530 , 254030 , 2108449 , 4216898 , 10542245 , 21084490
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21084489
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084490 can be divided by 32 positive divisors.
The sum of these divisors (counting 21084490) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011011100101001010
3
Ternary
1110200012111001
4
Quaternary
1100123211022
5
Quinary
20344200430
6
Senary
2031525214
8
Octal
120334512
10
Decimal
21084490
12
Duodecimal
708980a
16
Hexadecimal
141b94a
20
Vigesimal
6bfb4a
36
Base36
cjwwa
md5
fdac7a4e69225f50d62366853cbebb28
sha1
73c80e6fea33d07a138a086771d34fb41fb8b945
sha256
c15a5282a6d95fc4ee28e67c6446a3feb5d932644bccd54498618ed4435020a5
sha512
46e416af8b35623dd62f8d859502879e0d9f1e891a3ce2f8338682cca8942963550efa3ecc5f45dba0094218e0edd90f28e12ab8666ebeb62d2a92510a8a3b5d
ripemd-160
8369373a16cef52b7485e124b3288d3ec1c503a6
Diameter
42168980
Circumference
132477757.77737
Area
1.3966129795397E+15
Volume
3.9262496534635E+22
Surface area
5.586451918159E+15
Circumference
132477757.77737
Perimeter
84337960
Area
444555718560100
Diagonal
29817971.71372
Surface area
2667334311360600
Volume
9.3732306024232E+21
Space diagonal
36519407.931678
Perimeter
63253470
Area
1.9249827283535E+14
Altitude
18259703.965839
Surface area
1.9249827283535E+14
Volume
1.1046458200998E+21
Height
9939323.9045733