21008001 is an odd 8-digits composite number following 21008000
and preceding 21008002 . In scientific notation, it is written as 2.1008001 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 12004560 positive integers (up to 21008001) that are relatively prime to 21008001.
21008001 has 8 divisors, whose sum is 32012224
The reverse of 21008001 is 10080012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million eight thousand one
Scientific notation
2.1008001 × 10^7
Engineering notation
2.1008001 × 10^6
Prime Factorization
7 × 3 × 1000381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21008001
Product of the distinct prime numbers
The prime factorization of 21008001 is 7 × 3 × 1000381.
Since it has a total of 3 prime factors.
3 , 1 , 92 , 9 , 812 , 812 , 7425 , 4504 , 33196 , 16017 , 322551 , 978765 , 4266740 , 874059 , 52936781 , 9080716 , 486089574 , 357010860 , 6991916122 , 4925987103
n×2
42016002
n×3
63024003
n×4
84032004
n×5
105040005
n÷2
10504000.5
n÷3
7002667
n÷3
5252000.25
n÷5
4201600.2
n2
441336106016001
n3
9.2715893565203E+21
n4
1.9477755847337E+29
n5
4.091887143186E+36
2 √n
4583.4485924902
3 √n
275.92745152622
4 √n
67.701171278569
5 √n
29.139154481891
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
-21008000
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 21008001 can be divided by 8 positive divisors.
The sum of these divisors (counting 21008001) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000111010000001
3
Ternary
1110112022120010
4
Quaternary
1100020322001
5
Quinary
20334224001
6
Senary
2030135133
8
Octal
120107201
10
Decimal
21008001
12
Duodecimal
70514a9
16
Hexadecimal
1408e81
20
Vigesimal
6b6001
36
Base36
ci9vl
md5
147f32ba93566109df289828867eec65
sha1
ad843eacd1a15020b51105331dd4dba2b3fa9802
sha256
b8c949a53ab538b093900f17799a677672f8382dc6b96be03e4d6df29ced479f
sha512
fecff8037076100d79b5785aac8322170000801e3ffc607af47316ea4b341191bf0b0c5897a98dcf70ccd9bb4837fd2a670aee236c930e88a781b9b9165ab450
ripemd-160
0b644407063cec739a052f5f8bafb4cb34038b17
Diameter
42016002
Circumference
131997163.21641
Area
1.3864982684238E+15
Volume
3.8836742679394E+22
Surface area
5.5459930736952E+15
Circumference
131997163.21641
Perimeter
84032004
Area
441336106016001
Diagonal
29709799.932548
Surface area
2648016636096006
Volume
9.2715893565203E+21
Space diagonal
36386925.097458
Perimeter
63024003
Area
1.9110413970858E+14
Altitude
18193462.548729
Surface area
1.9110413970858E+14
Volume
1.0926672843954E+21
Height
9903266.6441825