21006903 is an odd 8-digits composite number following 21006902
and preceding 21006904 . In scientific notation, it is written as 2.1006903 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13926008 positive integers (up to 21006903) that are relatively prime to 21006903.
21006903 has 8 divisors, whose sum is 28166400
The reverse of 21006903 is 30960012
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million six thousand nine hundred three
Scientific notation
2.1006903 × 10^7
Engineering notation
2.1006903 × 10^6
Prime Factorization
3 × 179 × 39119
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21006903
Product of the distinct prime numbers
The prime factorization of 21006903 is 3 × 179 × 39119.
Since it has a total of 3 prime factors.
3 , 9 , 30 , 23 , 985 , 454 , 1486 , 2702 , 15056 , 1428 , 678618 , 103633 , 3523519 , 383275 , 22625724 , 82000256 , 209838506 , 640805315 , 6984608661 , 394490740
n×2
42013806
n×3
63020709
n×4
84027612
n×5
105034515
n÷2
10503451.5
n÷3
7002301
n÷3
5251725.75
n÷5
4201380.6
n2
441289973651409
n3
9.2701356713677E+21
n4
1.9473684084526E+29
n5
4.0908179261628E+36
2 √n
4583.328812119
3 √n
275.92264425271
4 √n
67.700286647244
5 √n
29.138849879273
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
-21006902
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 21006903 can be divided by 8 positive divisors.
The sum of these divisors (counting 21006903) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000101000110111
3
Ternary
1110112021001110
4
Quaternary
1100020220313
5
Quinary
20334210103
6
Senary
2030130103
8
Octal
120105067
10
Decimal
21006903
12
Duodecimal
7050933
16
Hexadecimal
1408a37
20
Vigesimal
6b5h53
36
Base36
ci913
md5
014b748a5826c77de5d8c017e1d74c31
sha1
3482609b40de5fde71c45f84679617a733ba89ac
sha256
56566734468c343f98f3b92818263df05352447103ffcf356dfe0cb7bddf9b29
sha512
c3f75749408ab644fecf67936a5e9fb0cd672d4200bdd1fa030d0e56d952ca4a84b0b8780c87eefe339a873138a18135d124b0486efab64df7085e564e5fb576
ripemd-160
2dc165bb801a059236e91545e974d582003eb1bf
Diameter
42013806
Circumference
131990264.27895
Area
1.3863533393261E+15
Volume
3.8830653497266E+22
Surface area
5.5454133573044E+15
Circumference
131990264.27895
Perimeter
84027612
Area
441289973651409
Diagonal
29708247.126056
Surface area
2647739841908454
Volume
9.2701356713677E+21
Space diagonal
36385023.305671
Perimeter
63020709
Area
1.9108416380874E+14
Altitude
18192511.652836
Surface area
1.9108416380874E+14
Volume
1.0924959659572E+21
Height
9902749.0420187