21003911 is an odd 8-digits composite number following 21003910
and preceding 21003912 . In scientific notation, it is written as 2.1003911 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 19673280 positive integers (up to 21003911) that are relatively prime to 21003911.
21003911 has 8 divisors, whose sum is 22359600
The reverse of 21003911 is 11930012
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million three thousand nine hundred eleven
Scientific notation
2.1003911 × 10^7
Engineering notation
2.1003911 × 10^6
Prime Factorization
19 × 89 × 12421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21003911
Product of the distinct prime numbers
The prime factorization of 21003911 is 19 × 89 × 12421.
Since it has a total of 3 prime factors.
1 , 10 , 49 , 24 , 683 , 533 , 2031 , 348 , 9851 , 31818 , 162212 , 956832 , 7827109 , 6045380 , 82634204 , 66969813 , 574201399 , 90850903 , 4615560443 , 7583687152
n×2
42007822
n×3
63011733
n×4
84015644
n×5
105019555
n÷2
10501955.5
n÷3
7001303.6666667
n÷3
5250977.75
n÷5
4200782.2
n2
441164277295921
n3
9.2661752167028E+21
n4
1.9462591956203E+29
n5
4.0879054927741E+36
2 √n
4583.0024001739
3 √n
275.90954380109
4 √n
67.697875891153
5 √n
29.138019786362
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
-21003910
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 21003911 can be divided by 8 positive divisors.
The sum of these divisors (counting 21003911) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111111010000111
3
Ternary
1110112002221122
4
Quaternary
1100013322013
5
Quinary
20334111121
6
Senary
2030104155
8
Octal
120077207
10
Decimal
21003911
12
Duodecimal
704b05b
16
Hexadecimal
1407e87
20
Vigesimal
6b59fb
36
Base36
ci6pz
md5
db45280f81a7187f49c0239e94337099
sha1
b8fe7ed49c1118b35275ae7cfe7a89bb1295e3b6
sha256
ae017f0b5397cb92514edad4c44da11f908b1db8a53d554ad5cfa53866c8e0fb
sha512
3e73a4492fe091df534911e9c33101823c6fbc5859503bb206c0b6e2b85730263fd0a75abf81a5f0acb81827318bb00d38d609f7ed01b32d65d3622d10183767
ripemd-160
cd452266dbb3038b391b83371bedb3c0c386cb9e
Diameter
42007822
Circumference
131971464.98851
Area
1.3859584525791E+15
Volume
3.8814063983559E+22
Surface area
5.5438338103165E+15
Circumference
131971464.98851
Perimeter
84015644
Area
441164277295921
Diagonal
29704015.799077
Surface area
2646985663775526
Volume
9.2661752167028E+21
Space diagonal
36379841.009655
Perimeter
63011733
Area
1.9102973569024E+14
Altitude
18189920.504827
Surface area
1.9102973569024E+14
Volume
1.0920292218989E+21
Height
9901338.5996925