21491027 is an odd 8-digits prime number following 21491026
and preceding 21491028 . In scientific notation, it is written as 2.1491027 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21491026 positive integers (up to 21491027) that are relatively prime to 21491027.
21491027 has 2 divisors, whose sum is 21491028
The reverse of 21491027 is 72019412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million four hundred ninety-one thousand twenty-seven
Scientific notation
2.1491027 × 10^7
Engineering notation
2.1491027 × 10^6
Prime Factorization
21491027
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21491027
Product of the distinct prime numbers
The prime factorization of 21491027 is 21491027.
Since it has a total of 1 prime factors.
3 , 9 , 98 , 44 , 226 , 630 , 7532 , 3565 , 29625 , 66282 , 464178 , 854163 , 2947360 , 270561 , 71406563 , 54087698 , 424993310 , 813959579 , 2777626200 , 8362074268
n×2
42982054
n×3
64473081
n×4
85964108
n×5
107455135
n÷2
10745513.5
n÷3
7163675.6666667
n÷3
5372756.75
n÷5
4298205.4
n2
461864241514729
n3
9.9259368847276E+21
n4
2.1331857758998E+29
n5
4.5844353105878E+36
2 √n
4635.8415632979
3 √n
278.02619959073
4 √n
68.087014645216
5 √n
29.271935124901
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21491028
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10745514
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4635.8416711531
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999069379
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491027 can be divided by 2 positive divisors.
The sum of these divisors (counting 21491027) is 21491028, the average is 10745514.
Base
System
Value
2
Binary
1010001111110110101010011
3
Ternary
1111102212010222
4
Quaternary
1101332311103
5
Quinary
21000203102
6
Senary
2044343255
8
Octal
121766523
10
Decimal
21491027
12
Duodecimal
7244b2b
16
Hexadecimal
147ed53
20
Vigesimal
6e67b7
36
Base36
csmkz
md5
6d97c6a7f6adf9f7352d4edbea6e834a
sha1
83225258c47e06943e4e0f0792d0e56af6eb77a4
sha256
5c6c83a6106695a51c6723594441d4382da2a31c878214569eac92401115e8ae
sha512
ecfcd214a3e4729738e19477a071673dc9869ca98cf868a74bab0e8bb250b8a351c7a6842888b1e757c45e633e94914a73cad8a81c5e44bd41ce3fc7a4f05a7e
ripemd-160
97507cfe43e2aaa4a700cd85b29d92bb59302d20
Diameter
42982054
Circumference
135032105.0826
Area
1.4509893080985E+15
Volume
4.1577667196075E+22
Surface area
5.803957232394E+15
Circumference
135032105.0826
Perimeter
85964108
Area
461864241514729
Diagonal
30392901.852726
Surface area
2771185449088374
Volume
9.9259368847276E+21
Space diagonal
37223550.670835
Perimeter
64473081
Area
1.9999308312569E+14
Altitude
18611775.335417
Surface area
1.9999308312569E+14
Volume
1.1697828801368E+21
Height
10130967.284242