21000771 is an odd 8-digits composite number following 21000770
and preceding 21000772 . In scientific notation, it is written as 2.1000771 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 12144000 positive integers (up to 21000771) that are relatively prime to 21000771.
21000771 has 24 divisors, whose sum is 26676720
The reverse of 21000771 is 17700012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million seven hundred seventy-one
Scientific notation
2.1000771 × 10^7
Engineering notation
2.1000771 × 10^6
Prime Factorization
9 × 23 × 23 × 11 × 401
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
913077
Product of the distinct prime numbers
The prime factorization of 21000771 is 9 × 23 × 23 × 11 × 401.
Since it has a total of 5 prime factors.
5 , 8 , 82 , 16 , 242 , 9 , 1239 , 9813 , 72239 , 80568 , 249567 , 526113 , 9505198 , 8317604 , 12818984 , 9155327 , 86527664 , 139103482 , 5363376650 , 8883300754
n×2
42001542
n×3
63002313
n×4
84003084
n×5
105003855
n÷2
10500385.5
n÷3
7000257
n÷3
5250192.75
n÷5
4200154.2
n2
441032382594441
n3
9.2620200704502E+21
n4
1.9450956249693E+29
n5
4.0848507793082E+36
2 √n
4582.6598171804
3 √n
275.89579399447
4 √n
67.695345609432
5 √n
29.137148530968
1 , 9 , 11 , 23 , 99 , 207 , 253 , 401 , 529 , 2277 , 3609 , 4411 , 4761 , 5819 , 9223 , 39699 , 52371 , 83007 , 101453 , 212129 , 913077 , 1909161 , 2333419 , 21000771
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000770
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000771 can be divided by 24 positive divisors.
The sum of these divisors (counting 21000771) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000111001001000011
3
Ternary
1110111221122100
4
Quaternary
1100013021003
5
Quinary
20334011041
6
Senary
2030041443
8
Octal
120071103
10
Decimal
21000771
12
Duodecimal
7049283
16
Hexadecimal
1407243
20
Vigesimal
6b51ib
36
Base36
ci4ar
md5
9fceef78b70e96bf0f9bbf6e15718ce6
sha1
eac5c2252a1ceacf4f7f48d88700425feb317aa0
sha256
72d30648f27cbeb213bfdec425ef4d76037624e27491e1f41d6eafd0519d2167
sha512
0916ca881abbbfc986ebd28836c2b5b495dbb8ac9d18e6c2c53573af573f38f040b4e2c4222d646241822f591fb7a86d549e3c80378c806f3468ce017c65fa11
ripemd-160
fa076c4f93a0db16f856310b4f305e855125bfa4
Diameter
42001542
Circumference
131951735.78664
Area
1.3855440931539E+15
Volume
3.8796658947637E+22
Surface area
5.5421763726156E+15
Circumference
131951735.78664
Perimeter
84003084
Area
441032382594441
Diagonal
29699575.168492
Surface area
2646194295566646
Volume
9.2620200704502E+21
Space diagonal
36374402.370119
Perimeter
63002313
Area
1.9097262360918E+14
Altitude
18187201.18506
Surface area
1.9097262360918E+14
Volume
1.0915395332169E+21
Height
9899858.3894972