21000305 is an odd 8-digits composite number following 21000304
and preceding 21000306 . In scientific notation, it is written as 2.1000305 × 10^7.
The sum of its digits is 11. It has a total of 3 prime factors and 8 positive divisors.
There are 16442608 positive integers (up to 21000305) that are relatively prime to 21000305.
21000305 has 8 divisors, whose sum is 25736832
The reverse of 21000305 is 50300012
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 11
Digital Root 2
Name
twenty-one million three hundred five
Scientific notation
2.1000305 × 10^7
Engineering notation
2.1000305 × 10^6
Prime Factorization
5 × 47 × 89363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000305
Product of the distinct prime numbers
The prime factorization of 21000305 is 5 × 47 × 89363.
Since it has a total of 3 prime factors.
10 , 4 , 1 , 20 , 11 , 54 , 975 , 9181 , 94150 , 43909 , 779272 , 551411 , 9295130 , 8821786 , 73754113 , 41087496 , 735726293 , 202047133 , 6669910271 , 2627705936
n×2
42000610
n×3
63000915
n×4
84001220
n×5
105001525
n÷2
10500152.5
n÷3
7000101.6666667
n÷3
5250076.25
n÷5
4200061
n2
441012810093025
n3
9.2614035208606E+21
n4
1.9449229866615E+29
n5
4.0843975921402E+36
2 √n
4582.6089730633
3 √n
275.89375330129
4 √n
67.694970072106
5 √n
29.137019221128
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
-21000304
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 21000305 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000305) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000001110001
3
Ternary
1110111221000002
4
Quaternary
1100013001301
5
Quinary
20334002210
6
Senary
2030035345
8
Octal
120070161
10
Decimal
21000305
12
Duodecimal
7048b55
16
Hexadecimal
1407071
20
Vigesimal
6b50f5
36
Base36
ci3xt
md5
92a9e816482c6afdef91588c82364414
sha1
60256d372294a19d01d932b2219365468c195d1b
sha256
0b89a07952d4fd2723a0f26a4c4c0b70a858b9815e66f8e53a1a18fcda56a574
sha512
ed12095a6100a0c9c286783697d7bf284fe1cf921410a50ec69580efee6f385b3fa45aa13a72e66e461dba81d46240d1bffa067394b7227f78e0a387ca262cf8
ripemd-160
3af9b3376af254d486156d3306db4c09efaaec17
Diameter
42000610
Circumference
131948807.82229
Area
1.3854826043272E+15
Volume
3.8794076350755E+22
Surface area
5.541930417309E+15
Circumference
131948807.82229
Perimeter
84001220
Area
441012810093025
Diagonal
29698916.144972
Surface area
2646076860558150
Volume
9.2614035208606E+21
Space diagonal
36373595.234443
Perimeter
63000915
Area
1.9096414846746E+14
Altitude
18186797.617221
Surface area
1.9096414846746E+14
Volume
1.0914668721509E+21
Height
9899638.7149905