21004791 is an odd 8-digits composite number following 21004790
and preceding 21004792 . In scientific notation, it is written as 2.1004791 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14003192 positive integers (up to 21004791) that are relatively prime to 21004791.
21004791 has 4 divisors, whose sum is 28006392
The reverse of 21004791 is 19740012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four thousand seven hundred ninety-one
Scientific notation
2.1004791 × 10^7
Engineering notation
2.1004791 × 10^6
Prime Factorization
3 × 7001597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21004791
Product of the distinct prime numbers
The prime factorization of 21004791 is 3 × 7001597.
Since it has a total of 2 prime factors.
6 , 6 , 15 , 94 , 204 , 244 , 6040 , 7268 , 35271 , 4162 , 248535 , 768742 , 4501540 , 7971957 , 24329649 , 57743098 , 21799147 , 389442731 , 6903791714 , 7812720170
n×2
42009582
n×3
63014373
n×4
84019164
n×5
105023955
n÷2
10502395.5
n÷3
7001597
n÷3
5251197.75
n÷5
4200958.2
n2
441201244953681
n3
9.2673399391919E+21
n4
1.9465853854868E+29
n5
4.0887619185804E+36
2 √n
4583.0984061004
3 √n
275.91339700424
4 √n
67.698584963797
5 √n
29.138263941155
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21004790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21004791 can be divided by 4 positive divisors.
The sum of these divisors (counting 21004791) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001000000111110111
3
Ternary
1110112011011020
4
Quaternary
1100020013313
5
Quinary
20334123131
6
Senary
2030112223
8
Octal
120100767
10
Decimal
21004791
12
Duodecimal
704b673
16
Hexadecimal
14081f7
20
Vigesimal
6b5bjb
36
Base36
ci7ef
md5
cc5539a00f1e4a19eb60b78a6734a67e
sha1
81e281a91d42b7e748fa1b508b4c7c7ca78b396b
sha256
e112ba14a674c08dd3746fb1ffa2148e75c43a9e7dcb91acceea7f0939f9dba6
sha512
29ea8346de26fca1dfbdef483a67b69e4d1d9394ad58d41c35e09ad4c4f75f816ef9933474a5f59ecf8d16be24682c16df3d5445f215f60b73dffb0c52b75317
ripemd-160
f58ab86dcc5e7db2d713551f5533e6f5ff7c725c
Diameter
42009582
Circumference
131976994.19158
Area
1.3860745899012E+15
Volume
3.8818942761713E+22
Surface area
5.5442983596046E+15
Circumference
131976994.19158
Perimeter
84019164
Area
441201244953681
Diagonal
29705260.307012
Surface area
2647207469722086
Volume
9.2673399391919E+21
Space diagonal
36381365.214365
Perimeter
63014373
Area
1.910457431556E+14
Altitude
18190682.607183
Surface area
1.910457431556E+14
Volume
1.0921664857606E+21
Height
9901753.4356708