21491037 is an odd 8-digits composite number following 21491036
and preceding 21491038 . In scientific notation, it is written as 2.1491037 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14308488 positive integers (up to 21491037) that are relatively prime to 21491037.
21491037 has 8 divisors, whose sum is 23910400
The reverse of 21491037 is 73019412
Previous prime number is 1867
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred ninety-one thousand thirty-seven
Scientific notation
2.1491037 × 10^7
Engineering notation
2.1491037 × 10^6
Prime Factorization
9 × 1867 × 1279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491037
Product of the distinct prime numbers
The prime factorization of 21491037 is 9 × 1867 × 1279.
Since it has a total of 3 prime factors.
5 , 2 , 68 , 71 , 348 , 679 , 6774 , 2052 , 88490 , 30306 , 522108 , 871066 , 3020977 , 5783141 , 77333086 , 1685228 , 622246724 , 698400118 , 2519725620 , 5807663560
n×2
42982074
n×3
64473111
n×4
85964148
n×5
107455185
n÷2
10745518.5
n÷3
7163679
n÷3
5372759.25
n÷5
4298207.4
n2
461864671335369
n3
9.9259507406613E+21
n4
2.1331897462773E+29
n5
4.5844459765266E+36
2 √n
4635.8426418506
3 √n
278.02624271355
4 √n
68.087022565615
5 √n
29.271937849008
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
-21491036
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 21491037 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491037) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110101011101
3
Ternary
1111102212011100
4
Quaternary
1101332311131
5
Quinary
21000203122
6
Senary
2044343313
8
Octal
121766535
10
Decimal
21491037
12
Duodecimal
7244b39
16
Hexadecimal
147ed5d
20
Vigesimal
6e67bh
36
Base36
csml9
md5
13398e9f095a1ce92f7385dd26d11a9e
sha1
08ce949770a5d83534b9e927029eacd6a12b68d6
sha256
657e992c0cc1aa38b70db59f03a2ea42b96752aab3af4e8152e85c526227fdb6
sha512
759fea439446b2ed954593658d5e3a2804500c6f7337d92f6475b29903b4b58b81437e01d402959b212518fceb5b863069925afa655262a56ede755a726ecece
ripemd-160
45a50610139c0911bcea9b90b7c6e9154aae7b10
Diameter
42982074
Circumference
135032167.91445
Area
1.4509906584199E+15
Volume
4.1577725235674E+22
Surface area
5.8039626336794E+15
Circumference
135032167.91445
Perimeter
85964148
Area
461864671335369
Diagonal
30392915.994862
Surface area
2771188028012214
Volume
9.9259507406613E+21
Space diagonal
37223567.991343
Perimeter
64473111
Area
1.9999326924349E+14
Altitude
18611783.995671
Surface area
1.9999326924349E+14
Volume
1.1697845130742E+21
Height
10130971.998287