21308045 is an odd 8-digits composite number following 21308044
and preceding 21308046 . In scientific notation, it is written as 2.1308045 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 15422400 positive integers (up to 21308045) that are relatively prime to 21308045.
21308045 has 16 divisors, whose sum is 28028160
The reverse of 21308045 is 54080312
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million three hundred eight thousand forty-five
Scientific notation
2.1308045 × 10^7
Engineering notation
2.1308045 × 10^6
Prime Factorization
5 × 11 × 239 × 1621
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21308045
Product of the distinct prime numbers
The prime factorization of 21308045 is 5 × 11 × 239 × 1621.
Since it has a total of 4 prime factors.
2 , 4 , 18 , 13 , 381 , 187 , 878 , 323 , 91010 , 68400 , 652387 , 67672 , 3363201 , 2089608 , 81656037 , 39403576 , 656485478 , 518570955 , 6915299006 , 5449543106
n×2
42616090
n×3
63924135
n×4
85232180
n×5
106540225
n÷2
10654022.5
n÷3
7102681.6666667
n÷3
5327011.25
n÷5
4261609
n2
454032781722025
n3
9.6745509444081E+21
n4
2.0614576687824E+29
n5
4.392563277201E+36
2 √n
4616.0637993858
3 √n
277.23487921659
4 √n
67.941620523695
5 √n
29.221918223225
1 , 5 , 11 , 55 , 239 , 1195 , 1621 , 2629 , 8105 , 13145 , 17831 , 89155 , 387419 , 1937095 , 4261609 , 21308045
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
-21308044
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 21308045 can be divided by 16 positive divisors.
The sum of these divisors (counting 21308045) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001010010001010001101
3
Ternary
1111002120010212
4
Quaternary
1101102022031
5
Quinary
20423324140
6
Senary
2040412205
8
Octal
121221215
10
Decimal
21308045
12
Duodecimal
7177065
16
Hexadecimal
145228d
20
Vigesimal
6d3a25
36
Base36
cope5
md5
42537f817d6bace3e3c611381a2717b8
sha1
43c0fecd4cfa43e7465769add0d1aac14e49b4b5
sha256
3584cc8c20dda49ebc864aa34f30d4ea1e04af737a1be5fd9e822c7628d3a336
sha512
684094be995030116db97912d3e21c1069616c85a7e1281a1a3b269c91ab43e969dc378442fa33782d07610d0ed0cbcf624d8e65996eb9344582979cbc400cf3
ripemd-160
ce3ccfc2f0b237f6cacbe47b60f2309a7f680955
Diameter
42616090
Circumference
133882395.26872
Area
1.4263860515469E+15
Volume
4.0524664231644E+22
Surface area
5.7055442061874E+15
Circumference
133882395.26872
Perimeter
85232180
Area
454032781722025
Diagonal
30134126.226656
Surface area
2724196690332150
Volume
9.6745509444081E+21
Space diagonal
36906616.549964
Perimeter
63924135
Area
1.9660196156109E+14
Altitude
18453308.274982
Surface area
1.9660196156109E+14
Volume
1.1401567629543E+21
Height
10044708.742219