21067905 is an odd 8-digits composite number following 21067904
and preceding 21067906 . In scientific notation, it is written as 2.1067905 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11236208 positive integers (up to 21067905) that are relatively prime to 21067905.
21067905 has 8 divisors, whose sum is 33708672
The reverse of 21067905 is 50976012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million sixty-seven thousand nine hundred five
Scientific notation
2.1067905 × 10^7
Engineering notation
2.1067905 × 10^6
Prime Factorization
3 × 5 × 1404527
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21067905
Product of the distinct prime numbers
The prime factorization of 21067905 is 3 × 5 × 1404527.
Since it has a total of 3 prime factors.
2 , 7 , 58 , 53 , 609 , 731 , 5555 , 8816 , 54344 , 71704 , 478921 , 488559 , 6134179 , 2267010 , 74451813 , 44068602 , 928409566 , 868321987 , 4359696036 , 4684252262
n×2
42135810
n×3
63203715
n×4
84271620
n×5
105339525
n÷2
10533952.5
n÷3
7022635
n÷3
5266976.25
n÷5
4213581
n2
443856621089025
n3
9.3511291267246E+21
n4
1.9700870008457E+29
n5
4.1505605775551E+36
2 √n
4589.9787581208
3 √n
276.18947030049
4 √n
67.749381975932
5 √n
29.155753532354
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
-21067904
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 21067905 can be divided by 8 positive divisors.
The sum of these divisors (counting 21067905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010111100010000001
3
Ternary
1110122100201210
4
Quaternary
1100113202001
5
Quinary
20343133110
6
Senary
2031320333
8
Octal
120274201
10
Decimal
21067905
12
Duodecimal
70800a9
16
Hexadecimal
1417881
20
Vigesimal
6bd9f5
36
Base36
cjk3l
md5
dd16226253c61f021f2a01a33f6ca858
sha1
8cc630c44fc32572e57986b065ae2440869c1fdb
sha256
6da07d62b4021280d2d2a41951c3fb92d4210d533dca2c6534f23123dc822134
sha512
1717a091cb9fa13b7ab21864ff9049191ab16209a993bb0f97fc8de815697926e2399dec9a6d9b611fd0d3d17002f365166cbc2e2d1e5273ee317249bf73c576
ripemd-160
5166fce0bac58316c8f83a2aceca6099b5b750e2
Diameter
42135810
Circumference
132373551.14906
Area
1.3944167000605E+15
Volume
3.9169918089717E+22
Surface area
5.5776668002419E+15
Circumference
132373551.14906
Perimeter
84271620
Area
443856621089025
Diagonal
29794516.981788
Surface area
2663139726534150
Volume
9.3511291267246E+21
Space diagonal
36490681.869034
Perimeter
63203715
Area
1.9219555475051E+14
Altitude
18245340.934517
Surface area
1.9219555475051E+14
Volume
1.1020411362097E+21
Height
9931505.660596