21491026 is an even 8-digits composite number following 21491025
and preceding 21491027 . In scientific notation, it is written as 2.1491026 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10113408 positive integers (up to 21491026) that are relatively prime to 21491026.
21491026 has 8 divisors, whose sum is 34132860
The reverse of 21491026 is 62019412
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand twenty-six
Scientific notation
2.1491026 × 10^7
Engineering notation
2.1491026 × 10^6
Prime Factorization
2 × 17 × 632089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491026
Product of the distinct prime numbers
The prime factorization of 21491026 is 2 × 17 × 632089.
Since it has a total of 3 prime factors.
10 , 3 , 42 , 46 , 491 , 991 , 8371 , 4371 , 60771 , 6616 , 586492 , 211072 , 8444638 , 167200 , 63507193 , 76117745 , 293144977 , 367668582 , 1735378420 , 5035676275
n×2
42982052
n×3
64473078
n×4
85964104
n×5
107455130
n÷2
10745513
n÷3
7163675.3333333
n÷3
5372756.5
n÷5
4298205.2
n2
461864198532676
n3
9.9259354991349E+21
n4
2.1331853788623E+29
n5
4.584434243995E+36
2 √n
4635.8414554426
3 √n
278.02619527844
4 √n
68.087013853176
5 √n
29.27193485249
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
-21491025
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 21491026 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491026) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110101010010
3
Ternary
1111102212010221
4
Quaternary
1101332311102
5
Quinary
21000203101
6
Senary
2044343254
8
Octal
121766522
10
Decimal
21491026
12
Duodecimal
7244b2a
16
Hexadecimal
147ed52
20
Vigesimal
6e67b6
36
Base36
csmky
md5
980600c134e74ae758646ae66cdcb2aa
sha1
eee5e10b429365e3ab345ac635d9e04762a78d88
sha256
d66bbe8f01ba0474b2d7ca9af65fca2da56932edee867855e06fc9a8c77ac78a
sha512
b68344132f393f9e55efc054a31fa574a5b262cf4afdcd4d505ca18a42d5e4d76c6687c02b4c3455d4ae2338de77a553df63a9c171f2f8265b30e9bf8f2024ed
ripemd-160
5c36121ac8815246cb8265e190d6087a99831b88
Diameter
42982052
Circumference
135032098.79941
Area
1.4509891730664E+15
Volume
4.1577661392118E+22
Surface area
5.8039566922656E+15
Circumference
135032098.79941
Perimeter
85964104
Area
461864198532676
Diagonal
30392900.438513
Surface area
2771185191196056
Volume
9.9259354991349E+21
Space diagonal
37223548.938784
Perimeter
64473078
Area
1.9999306451392E+14
Altitude
18611774.469392
Surface area
1.9999306451392E+14
Volume
1.1697827168431E+21
Height
10130966.812838