21491698 is an even 8-digits composite number following 21491697
and preceding 21491699 . In scientific notation, it is written as 2.1491698 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 10180260 positive integers (up to 21491698) that are relatively prime to 21491698.
21491698 has 8 divisors, whose sum is 33934320
The reverse of 21491698 is 89619412
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand six hundred ninety-eight
Scientific notation
2.1491698 × 10^7
Engineering notation
2.1491698 × 10^6
Prime Factorization
2 × 19 × 565571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491698
Product of the distinct prime numbers
The prime factorization of 21491698 is 2 × 19 × 565571.
Since it has a total of 3 prime factors.
5 , 1 , 33 , 3 , 211 , 69 , 6213 , 1658 , 47191 , 78893 , 630801 , 980916 , 1360523 , 344176 , 74906263 , 33523746 , 308317819 , 229844238 , 1859484441 , 9824113931
n×2
42983396
n×3
64475094
n×4
85966792
n×5
107458490
n÷2
10745849
n÷3
7163899.3333333
n÷3
5372924.5
n÷5
4298339.6
n2
461893082923204
n3
9.9268666464745E+21
n4
2.133452200523E+29
n5
4.5851510391076E+36
2 √n
4635.9139336273
3 √n
278.0290931028
4 √n
68.087546097854
5 √n
29.272117910239
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491697
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491698 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491698) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111111110010
3
Ternary
1111102220001211
4
Quaternary
1101332333302
5
Quinary
21000213243
6
Senary
2044350334
8
Octal
121767762
10
Decimal
21491698
12
Duodecimal
72453aa
16
Hexadecimal
147eff2
20
Vigesimal
6e694i
36
Base36
csn3m
md5
1717fee0483a2d3778a1ad52f9021966
sha1
6a2ed93ba6de5084c94d94ae5bde6fc5285591e6
sha256
ec7edaeb095e4fdf50ef53f9134f8c3b88a1dd2408bee076c53c36c097e0483f
sha512
9a224272240cfb9c72afbe49f22fc3e50126792d692927f9f945ebf412e4d8c8066226bfe953bd395eafb5fc3086e12ddedf1068b81fc007ea366384d462e057
ripemd-160
66f6e1f07fc9894431d895d593f8b4639115b0a1
Diameter
42983396
Circumference
135036321.09994
Area
1.4510799160555E+15
Volume
4.1581561772973E+22
Surface area
5.8043196642219E+15
Circumference
135036321.09994
Perimeter
85966792
Area
461893082923204
Diagonal
30393850.790027
Surface area
2771358497539224
Volume
9.9268666464745E+21
Space diagonal
37224712.876926
Perimeter
64475094
Area
2.000055718219E+14
Altitude
18612356.438463
Surface area
2.000055718219E+14
Volume
1.1698924536094E+21
Height
10131283.596676