21308982 is an even 8-digits composite number following 21308981
and preceding 21308983 . In scientific notation, it is written as 2.1308982 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 7057440 positive integers (up to 21308982) that are relatively prime to 21308982.
21308982 has 16 divisors, whose sum is 42891312
The reverse of 21308982 is 28980312
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million three hundred eight thousand nine hundred eighty-two
Scientific notation
2.1308982 × 10^7
Engineering notation
2.1308982 × 10^6
Prime Factorization
2 × 3 × 157 × 22621
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21308982
Product of the distinct prime numbers
The prime factorization of 21308982 is 2 × 3 × 157 × 22621.
Since it has a total of 4 prime factors.
9 , 3 , 62 , 2 , 697 , 40 , 6 , 1226 , 61959 , 43738 , 193978 , 729778 , 2801195 , 5979797 , 81452168 , 52199823 , 717868304 , 467590979 , 7216308604 , 7423117929
n×2
42617964
n×3
63926946
n×4
85235928
n×5
106544910
n÷2
10654491
n÷3
7102994
n÷3
5327245.5
n÷5
4261796.4
n2
454072713876324
n3
9.6758272866817E+21
n4
2.0618202948701E+29
n5
4.3935291550622E+36
2 √n
4616.165291668
3 √n
277.23894286601
4 √n
67.942367427607
5 √n
29.222175219639
1 , 2 , 3 , 6 , 157 , 314 , 471 , 942 , 22621 , 45242 , 67863 , 135726 , 3551497 , 7102994 , 10654491 , 21308982
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21308981
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308982 can be divided by 16 positive divisors.
The sum of these divisors (counting 21308982) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001010010011000110110
3
Ternary
1111002121102120
4
Quaternary
1101102120312
5
Quinary
20423341412
6
Senary
2040420410
8
Octal
121223066
10
Decimal
21308982
12
Duodecimal
7177706
16
Hexadecimal
1452636
20
Vigesimal
6d3c92
36
Base36
coq46
md5
73f14fbac64fb8309a2aca75bdbd85ad
sha1
23547f39e921a8054e4ecb451b192059cc035f06
sha256
c9b7767d82d7035c9a49eaa355ae2d4de130f1d7d8a3bc27705b26ae698e46b3
sha512
8c88cf4af9f3f56be95166c951cbc18cb91a8d757d0851ae6859d387a8cbdc27c872ccb0067c08eae6fa63bb3a09cf268c6f79a1d57341f9515436bbffa779cd
ripemd-160
31fa40d65ce05852e9589d4ef9956672aa8abbbc
Diameter
42617964
Circumference
133888282.61335
Area
1.4265115021094E+15
Volume
4.0530010561657E+22
Surface area
5.7060460084378E+15
Circumference
133888282.61335
Perimeter
85235928
Area
454072713876324
Diagonal
30135451.344764
Surface area
2724436283257944
Volume
9.6758272866817E+21
Space diagonal
36908239.481571
Perimeter
63926946
Area
1.9661925269112E+14
Altitude
18454119.740785
Surface area
1.9661925269112E+14
Volume
1.1403071813337E+21
Height
10045150.448255