21031803 is an odd 8-digits composite number following 21031802
and preceding 21031804 . In scientific notation, it is written as 2.1031803 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 12260160 positive integers (up to 21031803) that are relatively prime to 21031803.
21031803 has 16 divisors, whose sum is 26493600
The reverse of 21031803 is 30813012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million thirty-one thousand eight hundred three
Scientific notation
2.1031803 × 10^7
Engineering notation
2.1031803 × 10^6
Prime Factorization
9 × 13 × 19 × 9461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031803
Product of the distinct prime numbers
The prime factorization of 21031803 is 9 × 13 × 19 × 9461.
Since it has a total of 4 prime factors.
2 , 6 , 63 , 45 , 997 , 161 , 5093 , 1352 , 18012 , 81570 , 294977 , 7637 , 2546792 , 724769 , 88375230 , 87325612 , 284641198 , 433244626 , 5595021886 , 8886693280
n×2
42063606
n×3
63095409
n×4
84127212
n×5
105159015
n÷2
10515901.5
n÷3
7010601
n÷3
5257950.75
n÷5
4206360.6
n2
442336737430809
n3
9.3031391213075E+21
n4
1.9566178928093E+29
n5
4.1151202067841E+36
2 √n
4586.0443739676
3 √n
276.03162051078
4 √n
67.720339440729
5 √n
29.145754405828
1 , 9 , 13 , 19 , 117 , 171 , 247 , 2223 , 9461 , 85149 , 122993 , 179759 , 1106937 , 1617831 , 2336867 , 21031803
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
-21031802
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 21031803 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031803) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101101111011
3
Ternary
1110120112012200
4
Quaternary
1100032231323
5
Quinary
20341004203
6
Senary
2030441243
8
Octal
120165573
10
Decimal
21031803
12
Duodecimal
7063223
16
Hexadecimal
140eb7b
20
Vigesimal
6b8ja3
36
Base36
cis8r
md5
2f32625e87c85148fc9d83c7f2291e81
sha1
6610a684a3dd5227b5adbed19f5bcc4fb6cdce46
sha256
1827553bf45bb7ab62a76d30b044086424c9295d7f1029f8d28fffa196917a98
sha512
a18723d88fd04fb2c11bf6ca08b0565382df5660fd1ccb1d0ace89c52452ef02a9599462c13f1d1a3a8d65b36ae34e4c1f42bcc2eb1799d49e35e9f48f8e62cc
ripemd-160
6a7d4d965ea68b9742fddec0d3b5e9c551c386f8
Diameter
42063606
Circumference
132146715.5931
Area
1.3896418447255E+15
Volume
3.8968898025098E+22
Surface area
5.558567378902E+15
Circumference
132146715.5931
Perimeter
84127212
Area
442336737430809
Diagonal
29743461.043759
Surface area
2654020424584854
Volume
9.3031391213075E+21
Space diagonal
36428151.37078
Perimeter
63095409
Area
1.915374258211E+14
Altitude
18214075.68539
Surface area
1.915374258211E+14
Volume
1.0963854598331E+21
Height
9914487.0145864