21491763 is an odd 8-digits composite number following 21491762
and preceding 21491764 . In scientific notation, it is written as 2.1491763 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 14224488 positive integers (up to 21491763) that are relatively prime to 21491763.
21491763 has 8 divisors, whose sum is 28862400
The reverse of 21491763 is 36719412
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-one thousand seven hundred sixty-three
Scientific notation
2.1491763 × 10^7
Engineering notation
2.1491763 × 10^6
Prime Factorization
3 × 139 × 51539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491763
Product of the distinct prime numbers
The prime factorization of 21491763 is 3 × 139 × 51539.
Since it has a total of 3 prime factors.
10 , 3 , 74 , 13 , 145 , 408 , 8926 , 664 , 12933 , 72268 , 670757 , 264585 , 3837052 , 2819563 , 21194154 , 16803605 , 791952716 , 2492767 , 8226259082 , 8183834143
n×2
42983526
n×3
64475289
n×4
85967052
n×5
107458815
n÷2
10745881.5
n÷3
7163921
n÷3
5372940.75
n÷5
4298352.6
n2
461895876848169
n3
9.926956715898E+21
n4
2.1334780104934E+29
n5
4.5852203767235E+36
2 √n
4635.9209441059
3 √n
278.02937339511
4 √n
68.087597579192
5 √n
29.272135616474
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
-21491762
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 21491763 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491763) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111000000110011
3
Ternary
1111102220011020
4
Quaternary
1101333000303
5
Quinary
21000214023
6
Senary
2044350523
8
Octal
121770063
10
Decimal
21491763
12
Duodecimal
7245443
16
Hexadecimal
147f033
20
Vigesimal
6e6983
36
Base36
csn5f
md5
f17eaf13670aa68e3befd3c562a05c4a
sha1
572c83f04903a50c77ffa2498ef4a19ce070883a
sha256
9b63ee6502da8bd1489556ad279c221bcfda8137354056de77abb800efc53518
sha512
88cd8c03766745d131fa08269c86206029a7053b65e0d1481af85b8493f20a0c8a22c1e09c3f3392864ce09c815c99c49a3aa68000c1c9b0f330c96826e02b1e
ripemd-160
85f5c20b3c62f976465ba22056f9d811e45ffd07
Diameter
42983526
Circumference
135036729.50699
Area
1.4510886934296E+15
Volume
4.1581939054892E+22
Surface area
5.8043547737185E+15
Circumference
135036729.50699
Perimeter
85967052
Area
461895876848169
Diagonal
30393942.713908
Surface area
2771375261089014
Volume
9.926956715898E+21
Space diagonal
37224825.460229
Perimeter
64475289
Area
2.000067816269E+14
Altitude
18612412.730114
Surface area
2.000067816269E+14
Volume
1.1699030683928E+21
Height
10131314.237969