21004881 is an odd 8-digits composite number following 21004880
and preceding 21004882 . In scientific notation, it is written as 2.1004881 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13980192 positive integers (up to 21004881) that are relatively prime to 21004881.
21004881 has 8 divisors, whose sum is 28052640
The reverse of 21004881 is 18840012
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four thousand eight hundred eighty-one
Scientific notation
2.1004881 × 10^7
Engineering notation
2.1004881 × 10^6
Prime Factorization
3 × 643 × 10889
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21004881
Product of the distinct prime numbers
The prime factorization of 21004881 is 3 × 643 × 10889.
Since it has a total of 3 prime factors.
5 , 2 , 54 , 54 , 911 , 381 , 7103 , 5790 , 67620 , 65898 , 286083 , 134162 , 9367022 , 8015557 , 46500777 , 52131651 , 56658320 , 386205948 , 3119599657 , 585517269
n×2
42009762
n×3
63014643
n×4
84019524
n×5
105024405
n÷2
10502440.5
n÷3
7001627
n÷3
5251220.25
n÷5
4200976.2
n2
441205025824161
n3
9.2674590640384E+21
n4
1.946618748125E+29
n5
4.0888495156734E+36
2 √n
4583.108224775
3 √n
275.91379107576
4 √n
67.698657481334
5 √n
29.138288911071
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
-21004880
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 21004881 can be divided by 8 positive divisors.
The sum of these divisors (counting 21004881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000001001010001
3
Ternary
1110112011021120
4
Quaternary
1100020021101
5
Quinary
20334124011
6
Senary
2030112453
8
Octal
120101121
10
Decimal
21004881
12
Duodecimal
704b729
16
Hexadecimal
1408251
20
Vigesimal
6b5c41
36
Base36
ci7gx
md5
c522b2e7b009325aed7ee31044846958
sha1
68e9f84c857898316d348dd5830e432f82416096
sha256
18bfcdef85065f10895aae49e60c246f12369348eadeed76c8cac234b36098f1
sha512
6bbd0cd7160e56d36044d88cbf9fdb539821e1d8321efa07a650b8ede28f0bdf7c310fe3c2a33956845ae5826771ae3ec7f0ec0524ef36eb7cced36106c2b8c1
ripemd-160
2980f4a5ac9369811ee5cb8d9b59f3a861b68436
Diameter
42009762
Circumference
131977559.67826
Area
1.3860864678561E+15
Volume
3.8819441750703E+22
Surface area
5.5443458714243E+15
Circumference
131977559.67826
Perimeter
84019524
Area
441205025824161
Diagonal
29705387.586233
Surface area
2647230154944966
Volume
9.2674590640384E+21
Space diagonal
36381521.098938
Perimeter
63014643
Area
1.9104738032055E+14
Altitude
18190760.549469
Surface area
1.9104738032055E+14
Volume
1.0921805247584E+21
Height
9901795.8620776