21141281 is an odd 8-digits composite number following 21141280
and preceding 21141282 . In scientific notation, it is written as 2.1141281 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 16744320 positive integers (up to 21141281) that are relatively prime to 21141281.
21141281 has 16 divisors, whose sum is 26060160
The reverse of 21141281 is 18214112
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred forty-one thousand two hundred eighty-one
Scientific notation
2.1141281 × 10^7
Engineering notation
2.1141281 × 10^6
Prime Factorization
7 × 41 × 19 × 3877
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21141281
Product of the distinct prime numbers
The prime factorization of 21141281 is 7 × 41 × 19 × 3877.
Since it has a total of 4 prime factors.
9 , 5 , 9 , 13 , 789 , 381 , 2317 , 6490 , 89138 , 63939 , 187872 , 209736 , 8441042 , 9405336 , 37387505 , 52516312 , 651752761 , 144867632 , 6060497860 , 977262160
n×2
42282562
n×3
63423843
n×4
84565124
n×5
105706405
n÷2
10570640.5
n÷3
7047093.6666667
n÷3
5285320.25
n÷5
4228256.2
n2
446953762320961
n3
9.4491750832346E+21
n4
1.9976766565286E+29
n5
4.2233443542812E+36
2 √n
4597.9648758989
3 √n
276.50973939645
4 √n
67.808295037546
5 √n
29.176034223848
1 , 7 , 19 , 41 , 133 , 287 , 779 , 3877 , 5453 , 27139 , 73663 , 158957 , 515641 , 1112699 , 3020183 , 21141281
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21141280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21141281 can be divided by 16 positive divisors.
The sum of these divisors (counting 21141281) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000101001011100100001
3
Ternary
1110210002101102
4
Quaternary
1100221130201
5
Quinary
20403010111
6
Senary
2033044145
8
Octal
120513441
10
Decimal
21141281
12
Duodecimal
70b6655
16
Hexadecimal
1429721
20
Vigesimal
6c2d41
36
Base36
cl4pt
md5
40b68faea575e56d69e0e3ff9a30bd04
sha1
f05e4b60ce5577de42cfd4194507a13112e2b9b7
sha256
49aa10fd3b1063af0d27caf76b666df92432c4260edbe2788a18454611d17602
sha512
38e745f3f935f5fd8bff40717b0edc0c27c9862d120192b493ad5bf43574703af99d9e92e60abc7c48958d5b1053f1eae8ce2ac0cfc237fe064a0ba7b69e8a13
ripemd-160
04aa964421b569dbdad586afd5eccbabcdc72fda
Diameter
42282562
Circumference
132834586.15415
Area
1.4041466562018E+15
Volume
3.9580612031965E+22
Surface area
5.6165866248074E+15
Circumference
132834586.15415
Perimeter
84565124
Area
446953762320961
Diagonal
29898286.316141
Surface area
2681722573925766
Volume
9.4491750832346E+21
Space diagonal
36617772.829091
Perimeter
63423843
Area
1.9353665624349E+14
Altitude
18308886.414545
Surface area
1.9353665624349E+14
Volume
1.1135959629957E+21
Height
9966095.4387135