21000641 is an odd 8-digits composite number following 21000640
and preceding 21000642 . In scientific notation, it is written as 2.1000641 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 20396880 positive integers (up to 21000641) that are relatively prime to 21000641.
21000641 has 8 divisors, whose sum is 21609984
The reverse of 21000641 is 14600012
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million six hundred forty-one
Scientific notation
2.1000641 × 10^7
Engineering notation
2.1000641 × 10^6
Prime Factorization
43 × 191 × 2557
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000641
Product of the distinct prime numbers
The prime factorization of 21000641 is 43 × 191 × 2557.
Since it has a total of 3 prime factors.
8 , 2 , 34 , 51 , 697 , 944 , 8455 , 3745 , 90302 , 37151 , 769354 , 930311 , 6416583 , 720638 , 43933198 , 79373552 , 851749943 , 663421186 , 7670785574 , 9839288040
n×2
42001282
n×3
63001923
n×4
84002564
n×5
105003205
n÷2
10500320.5
n÷3
7000213.6666667
n÷3
5250160.25
n÷5
4200128.2
n2
441026922410881
n3
9.2618480688858E+21
n4
1.9450474629121E+29
n5
4.0847243496579E+36
2 √n
4582.645633256
3 √n
275.89522470542
4 √n
67.695240846429
5 √n
29.137112457638
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
-21000640
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 21000641 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000111000001
3
Ternary
1110111221110112
4
Quaternary
1100013013001
5
Quinary
20334010031
6
Senary
2030041105
8
Octal
120070701
10
Decimal
21000641
12
Duodecimal
7049195
16
Hexadecimal
14071c1
20
Vigesimal
6b51c1
36
Base36
ci475
md5
7786f44d933f0f05d2b68df929571e3a
sha1
19a812f40297eb4ea13e13fbcdd8a98164040d88
sha256
b1f2018e5ec8b4063121462d671d5e651bde8c5a1bf46f3d1fbebb4f4dadd3f8
sha512
758806e71a3ef1813ca3fe5307ff994580d7cc77a970a373c6ab48c09ea7a9f2cc7d99581ca017c3d77f7ff73d39cc8a874b5058e624cfdf78add8d790987400
ripemd-160
93f11ce6d0ff15b5bccc2cb5a822b7a9bb10ef0f
Diameter
42001282
Circumference
131950918.97255
Area
1.3855269394813E+15
Volume
3.8795938469168E+22
Surface area
5.5421077579254E+15
Circumference
131950918.97255
Perimeter
84002564
Area
441026922410881
Diagonal
29699391.320728
Surface area
2646161534465286
Volume
9.2618480688858E+21
Space diagonal
36374177.203514
Perimeter
63001923
Area
1.9097025928035E+14
Altitude
18187088.601757
Surface area
1.9097025928035E+14
Volume
1.0915192626381E+21
Height
9899797.1069095