21490889 is an odd 8-digits composite number following 21490888
and preceding 21490890 . In scientific notation, it is written as 2.1490889 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 18420756 positive integers (up to 21490889) that are relatively prime to 21490889.
21490889 has 4 divisors, whose sum is 24561024
The reverse of 21490889 is 98809412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety thousand eight hundred eighty-nine
Scientific notation
2.1490889 × 10^7
Engineering notation
2.1490889 × 10^6
Prime Factorization
7 × 3070127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490889
Product of the distinct prime numbers
The prime factorization of 21490889 is 7 × 3070127.
Since it has a total of 2 prime factors.
2 , 4 , 64 , 42 , 202 , 879 , 8198 , 7978 , 62498 , 95041 , 689628 , 783278 , 1352131 , 1639783 , 76710481 , 33413055 , 784185723 , 283076806 , 2613341430 , 893894832
n×2
42981778
n×3
64472667
n×4
85963556
n×5
107454445
n÷2
10745444.5
n÷3
7163629.6666667
n÷3
5372722.25
n÷5
4298177.8
n2
461858310010321
n3
9.9257456741594E+21
n4
2.1331309852559E+29
n5
4.5842881226595E+36
2 √n
4635.826679245
3 √n
278.02560449434
4 √n
68.086905343429
5 √n
29.271897532119
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490889 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490889) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110011001001
3
Ternary
1111102211221212
4
Quaternary
1101332303021
5
Quinary
21000202024
6
Senary
2044342505
8
Octal
121766311
10
Decimal
21490889
12
Duodecimal
7244a35
16
Hexadecimal
147ecc9
20
Vigesimal
6e6749
36
Base36
csmh5
md5
62822f8325ab35a18929b312b23721a1
sha1
eed7da3cde2c127f79d4e4b2ea68630f2152da8a
sha256
5325e5486fa1f26d0c4b5631a4f61c2cf7fe01967b430f2f9a7d91a38f5a3369
sha512
6daf960d11a3172e5610c426b7ced2013339f59f450eb7799820147f9478f1363987e7610b408e2d5831d59ce1deea2c48b4a4d02dfe6566ff5784a3ad5f7255
ripemd-160
2863bee6b180bb02f8fcef17b895f84197eaf8d1
Diameter
42981778
Circumference
135031238.00303
Area
1.4509706737278E+15
Volume
4.157686625512E+22
Surface area
5.8038826949113E+15
Circumference
135031238.00303
Perimeter
85963556
Area
461858310010321
Diagonal
30392706.691255
Surface area
2771149860061926
Volume
9.9257456741594E+21
Space diagonal
37223311.647823
Perimeter
64472667
Area
1.9999051470894E+14
Altitude
18611655.823912
Surface area
1.9999051470894E+14
Volume
1.1697603457552E+21
Height
10130902.230418