21103731 is an odd 8-digits composite number following 21103730
and preceding 21103732 . In scientific notation, it is written as 2.1103731 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 18 positive divisors.
There are 12789480 positive integers (up to 21103731) that are relatively prime to 21103731.
21103731 has 18 divisors, whose sum is 33508020
The reverse of 21103731 is 13730112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one hundred three thousand seven hundred thirty-one
Scientific notation
2.1103731 × 10^7
Engineering notation
2.1103731 × 10^6
Prime Factorization
3 × 3 × 11 × 11 × 19379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
639507
Product of the distinct prime numbers
The prime factorization of 21103731 is 3 × 3 × 11 × 11 × 19379.
Since it has a total of 5 prime factors.
6 , 8 , 78 , 86 , 964 , 999 , 1898 , 8559 , 36325 , 70154 , 570859 , 725718 , 5213096 , 4518437 , 48429480 , 75620221 , 406905045 , 144572525 , 6666080561 , 9043815119
n×2
42207462
n×3
63311193
n×4
84414924
n×5
105518655
n÷2
10551865.5
n÷3
7034577
n÷3
5275932.75
n÷5
4220746.2
n2
445367462120361
n3
9.3989151167408E+21
n4
1.9835217631553E+29
n5
4.1859709722275E+36
2 √n
4593.879732862
3 √n
276.34593516287
4 √n
67.778165605614
5 √n
29.165662673842
1 , 3 , 9 , 11 , 33 , 99 , 121 , 363 , 1089 , 19379 , 58137 , 174411 , 213169 , 639507 , 1918521 , 2344859 , 7034577 , 21103731
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21103730
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21103731 can be divided by 18 positive divisors.
The sum of these divisors (counting 21103731) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1010000100000010001110011
3
Ternary
1110201011212200
4
Quaternary
1100200101303
5
Quinary
20400304411
6
Senary
2032154243
8
Octal
120402163
10
Decimal
21103731
12
Duodecimal
7098983
16
Hexadecimal
1420473
20
Vigesimal
6bhj6b
36
Base36
ckbqr
md5
ede83f2f94a0932da18656ad825e3fb4
sha1
94b5cbd99e68b429d60cd65af3ead3a175d2b0e7
sha256
5f4552d0700f54ae6a4be642518a947133cd12f7c8d46c1e484d9036e0cd8793
sha512
ba49a4af90e8a7e9eefa6444c1e5380876a86d99c2698ddcba168bf7e85bc24df25c24caf0f4dc698b173d6c9ce6b0988bb988af41d90623ab39b777e6797b94
ripemd-160
2f04c0930f4f47e81450cf2f8cdd8b1698b8da90
Diameter
42207462
Circumference
132598652.54587
Area
1.3991631471453E+15
Volume
3.9370083576623E+22
Surface area
5.596652588581E+15
Circumference
132598652.54587
Perimeter
84414924
Area
445367462120361
Diagonal
29845182.596874
Surface area
2672204772722166
Volume
9.3989151167408E+21
Space diagonal
36552734.321266
Perimeter
63311193
Area
1.9284976810762E+14
Altitude
18276367.160633
Surface area
1.9284976810762E+14
Volume
1.1076727691407E+21
Height
9948394.1989578