21031742 is an even 8-digits composite number following 21031741
and preceding 21031743 . In scientific notation, it is written as 2.1031742 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 10492600 positive integers (up to 21031742) that are relatively prime to 21031742.
21031742 has 8 divisors, whose sum is 31617432
The reverse of 21031742 is 24713012
Previous prime number is 461
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand seven hundred forty-two
Scientific notation
2.1031742 × 10^7
Engineering notation
2.1031742 × 10^6
Prime Factorization
2 × 461 × 22811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031742
Product of the distinct prime numbers
The prime factorization of 21031742 is 2 × 461 × 22811.
Since it has a total of 3 prime factors.
10 , 5 , 75 , 93 , 403 , 86 , 6847 , 3434 , 8567 , 93903 , 817895 , 496477 , 4338167 , 8389382 , 940876 , 4018182 , 338968061 , 969513827 , 9894342963 , 4083854487
n×2
42063484
n×3
63095226
n×4
84126968
n×5
105158710
n÷2
10515871
n÷3
7010580.6666667
n÷3
5257935.5
n÷5
4206348.4
n2
442334171554564
n3
9.3030581739193E+21
n4
1.9565951932486E+29
n5
4.1150605302845E+36
2 √n
4586.0377233512
3 √n
276.03135364596
4 √n
67.720290337174
5 √n
29.145737499117
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
-21031741
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 21031742 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031742) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101100111110
3
Ternary
1110120112010102
4
Quaternary
1100032230332
5
Quinary
20341003432
6
Senary
2030441102
8
Octal
120165476
10
Decimal
21031742
12
Duodecimal
7063192
16
Hexadecimal
140eb3e
20
Vigesimal
6b8j72
36
Base36
cis72
md5
f482830b92ef450585fbb44d469e4e8e
sha1
90d62ca66592dca0beb34fd86418a0d766c2ecbc
sha256
f7acd843735e386e37e92bffa62667e827ebf6f6ef2d4678a04dc5160a41cd8e
sha512
e581980c04da5c6466879681bfd39fe8d1c64e787c33c0d5b0fb46907b019d9a5e8e77924e4085e1967cc797446625e2f3092608980ca51a72de1ad8a4e1f571
ripemd-160
38c64f12cd3c2cc03b0f04ea5bf0a38be19dae0c
Diameter
42063484
Circumference
132146332.31879
Area
1.3896337837875E+15
Volume
3.8968558953471E+22
Surface area
5.5585351351502E+15
Circumference
132146332.31879
Perimeter
84126968
Area
442334171554564
Diagonal
29743374.776732
Surface area
2654005029327384
Volume
9.3030581739193E+21
Space diagonal
36428045.71568
Perimeter
63095226
Area
1.915363147641E+14
Altitude
18214022.85784
Surface area
1.915363147641E+14
Volume
1.0963759200919E+21
Height
9914458.2589106