21128001 is an odd 8-digits composite number following 21128000
and preceding 21128002 . In scientific notation, it is written as 2.1128001 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 14062080 positive integers (up to 21128001) that are relatively prime to 21128001.
21128001 has 8 divisors, whose sum is 28217184
The reverse of 21128001 is 10082112
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million one hundred twenty-eight thousand one
Scientific notation
2.1128001 × 10^7
Engineering notation
2.1128001 × 10^6
Prime Factorization
3 × 641 × 10987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21128001
Product of the distinct prime numbers
The prime factorization of 21128001 is 3 × 641 × 10987.
Since it has a total of 3 prime factors.
6 , 2 , 97 , 97 , 870 , 430 , 2898 , 8419 , 21911 , 50244 , 915956 , 850877 , 1559916 , 1743785 , 43603395 , 74221813 , 888419670 , 247930490 , 8078038884 , 9851716573
n×2
42256002
n×3
63384003
n×4
84512004
n×5
105640005
n÷2
10564000.5
n÷3
7042667
n÷3
5282000.25
n÷5
4225600.2
n2
446392426256001
n3
9.4313796283292E+21
n4
1.9926619821872E+29
n5
4.2100964352313E+36
2 √n
4596.5205318806
3 √n
276.45183028363
4 √n
67.797643999483
5 √n
29.172367888543
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
-21128000
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 21128001 can be divided by 8 positive divisors.
The sum of these divisors (counting 21128001) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100110001101000001
3
Ternary
1110202102011120
4
Quaternary
1100212031001
5
Quinary
20402044001
6
Senary
2032502453
8
Octal
120461501
10
Decimal
21128001
12
Duodecimal
70aaa29
16
Hexadecimal
1426341
20
Vigesimal
6c1001
36
Base36
ckugx
md5
e59e0ac4ff4a1ac76ad2b7b044cd2476
sha1
2e1f9b7c3690857df96f69be2078fd9d5425c779
sha256
69320f848f2ea126af53676df846fdfd6f0362a92080097591431cc6b88d5c8f
sha512
dc2f63a19281c8bde1c5de12149a692d1b165be9672476d9e8bea5b49fed70c6e893245eb085ff26d9ce81e016a77470a5da809b1fa019a5d63fde15211aafbd
ripemd-160
ea8fe6593485d077d9ccf4218cbdfd3c5f1c2b0a
Diameter
42256002
Circumference
132751145.45328
Area
1.402383166944E+15
Volume
3.9506070604767E+22
Surface area
5.6095326677759E+15
Circumference
132751145.45328
Perimeter
84512004
Area
446392426256001
Diagonal
29879505.560032
Surface area
2678354557536006
Volume
9.4313796283292E+21
Space diagonal
36594771.194366
Perimeter
63384003
Area
1.9329359059733E+14
Altitude
18297385.597183
Surface area
1.9329359059733E+14
Volume
1.1114987485227E+21
Height
9959835.1866774