21000621 is an odd 8-digits composite number following 21000620
and preceding 21000622 . In scientific notation, it is written as 2.1000621 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 13980672 positive integers (up to 21000621) that are relatively prime to 21000621.
21000621 has 8 divisors, whose sum is 28040320
The reverse of 21000621 is 12600012
Previous prime number is 769
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million six hundred twenty-one
Scientific notation
2.1000621 × 10^7
Engineering notation
2.1000621 × 10^6
Prime Factorization
3 × 769 × 9103
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000621
Product of the distinct prime numbers
The prime factorization of 21000621 is 3 × 769 × 9103.
Since it has a total of 3 prime factors.
2 , 3 , 76 , 44 , 88 , 811 , 1945 , 530 , 51560 , 25508 , 28842 , 557965 , 8912107 , 2874917 , 49242353 , 70860695 , 833510938 , 43274223 , 4602868906 , 7015482790
n×2
42001242
n×3
63001863
n×4
84002484
n×5
105003105
n÷2
10500310.5
n÷3
7000207
n÷3
5250155.25
n÷5
4200124.2
n2
441026082385641
n3
9.2618216072956E+21
n4
1.9450400534443E+29
n5
4.0847048992203E+36
2 √n
4582.6434511099
3 √n
275.89513712228
4 √n
67.695224729
5 √n
29.13710690788
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
-21000620
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 21000621 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000110101101
3
Ternary
1110111221102210
4
Quaternary
1100013012231
5
Quinary
20334004441
6
Senary
2030041033
8
Octal
120070655
10
Decimal
21000621
12
Duodecimal
7049179
16
Hexadecimal
14071ad
20
Vigesimal
6b51b1
36
Base36
ci46l
md5
8e84c6dfb253b7905bdbbab707da03d0
sha1
a7761e83308ca09411c3de66c2c26f8cf8b1bfe8
sha256
ccb062295992f68f77429630e3835c14d9cc94d2a0f4c85f9c99571c79421040
sha512
60b2180e660a879332de0f04e26f29aa99bc1d8020eff82372ab52f25a13f400f28469af73a7461a33a65da3a938d059c590c5f403755961bdda26886b07cbbe
ripemd-160
b6b08800c7a5f3750878d6ce642778bc4de91dd5
Diameter
42001242
Circumference
131950793.30885
Area
1.3855243004642E+15
Volume
3.8795827627119E+22
Surface area
5.5420972018569E+15
Circumference
131950793.30885
Perimeter
84002484
Area
441026082385641
Diagonal
29699363.036457
Surface area
2646156494313846
Volume
9.2618216072956E+21
Space diagonal
36374142.562498
Perimeter
63001863
Area
1.9096989553875E+14
Altitude
18187071.281249
Surface area
1.9096989553875E+14
Volume
1.0915161441098E+21
Height
9899787.6788191