21420007 is an odd 8-digits composite number following 21420006
and preceding 21420008 . In scientific notation, it is written as 2.1420007 × 10^7.
The sum of its digits is 16. It has a total of 5 prime factors and 16 positive divisors.
There are 18209184 positive integers (up to 21420007) that are relatively prime to 21420007.
21420007 has 16 divisors, whose sum is 25185600
The reverse of 21420007 is 70002412
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million four hundred twenty thousand seven
Scientific notation
2.1420007 × 10^7
Engineering notation
2.1420007 × 10^6
Prime Factorization
7 × 7 × 7 × 197 × 317
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
437143
Product of the distinct prime numbers
The prime factorization of 21420007 is 7 × 7 × 7 × 197 × 317.
Since it has a total of 5 prime factors.
1 , 1 , 63 , 81 , 177 , 720 , 4905 , 8318 , 68200 , 43006 , 387943 , 866346 , 6570728 , 96773 , 74484103 , 4847363 , 34878430 , 787068647 , 592290549 , 7820262861
n×2
42840014
n×3
64260021
n×4
85680028
n×5
107100035
n÷2
10710003.5
n÷3
7140002.3333333
n÷3
5355001.75
n÷5
4284001.4
n2
458816699880049
n3
9.8278569231475E+21
n4
2.1051276408882E+29
n5
4.5091848803719E+36
2 √n
4628.1753424001
3 √n
277.71960324264
4 √n
68.03069411964
5 √n
29.252562888416
1 , 7 , 49 , 197 , 317 , 343 , 1379 , 2219 , 9653 , 15533 , 62449 , 67571 , 108731 , 437143 , 3060001 , 21420007
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
-21420006
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 21420007 can be divided by 16 positive divisors.
The sum of these divisors (counting 21420007) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001101101011111100111
3
Ternary
1111022020201121
4
Quaternary
1101231133213
5
Quinary
20440420012
6
Senary
2043034411
8
Octal
121553747
10
Decimal
21420007
12
Duodecimal
720ba07
16
Hexadecimal
146d7e7
20
Vigesimal
6dha07
36
Base36
cr3s7
md5
97c07e0abd76014bfca4c3a6d4ab30ac
sha1
16a3c81a80a309b9e68790b6c265ec2e16396083
sha256
ec853f7f715455aa6630747bab018dc26adeb4644f1275e1a8e44a3816cec575
sha512
e14c708836342b145991669a0f1fe6575afb89e3b63d1139e89d0380d2e7c80d48b96f26fdeedddce00e5de8ccdae3b62b240dcb6566284f33fbe33aee56447b
ripemd-160
fbfb412548c1fde5819936594848e0b6d9176c1f
Diameter
42840014
Circumference
134585873.26208
Area
1.4414151736875E+15
Volume
4.1166830813723E+22
Surface area
5.7656606947499E+15
Circumference
134585873.26208
Perimeter
85680028
Area
458816699880049
Diagonal
30292464.405527
Surface area
2752900199280294
Volume
9.8278569231475E+21
Space diagonal
37100540.422481
Perimeter
64260021
Area
1.9867345888833E+14
Altitude
18550270.211241
Surface area
1.9867345888833E+14
Volume
1.1582240458148E+21
Height
10097488.135176