21231430 is an even 8-digits composite number following 21231429
and preceding 21231431 . In scientific notation, it is written as 2.1231430 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 7720480 positive integers (up to 21231430) that are relatively prime to 21231430.
21231430 has 16 divisors, whose sum is 41691024
The reverse of 21231430 is 03413212
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million two hundred thirty-one thousand four hundred thirty
Scientific notation
2.1231430 × 10^7
Engineering notation
2.1231430 × 10^6
Prime Factorization
2 × 5 × 11 × 193013
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21231430
Product of the distinct prime numbers
The prime factorization of 21231430 is 2 × 5 × 11 × 193013.
Since it has a total of 4 prime factors.
5 , 8 , 28 , 15 , 68 , 905 , 9755 , 6856 , 28233 , 45203 , 239987 , 791421 , 3523338 , 472003 , 98139825 , 81204416 , 607214963 , 698202651 , 31709730 , 4689522608
n×2
42462860
n×3
63694290
n×4
84925720
n×5
106157150
n÷2
10615715
n÷3
7077143.3333333
n÷3
5307857.5
n÷5
4246286
n2
450773619844900
n3
9.5705685555836E+21
n4
2.0319685634807E+29
n5
4.3141598317742E+36
2 √n
4607.7575891099
3 √n
276.90220583048
4 √n
67.88046544559
5 √n
29.200873925586
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 193013 , 386026 , 965065 , 1930130 , 2123143 , 4246286 , 10615715 , 21231430
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
-21231429
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 21231430 can be divided by 16 positive divisors.
The sum of these divisors (counting 21231430) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000111111011101000110
3
Ternary
1110221200001021
4
Quaternary
1100333131012
5
Quinary
20413401210
6
Senary
2035021354
8
Octal
120773506
10
Decimal
21231430
12
Duodecimal
713a85a
16
Hexadecimal
143f746
20
Vigesimal
6cdiba
36
Base36
cn29y
md5
f09bd6d155bfc7b82aa60c16ce4fd850
sha1
bfa50825b613106889b3411a17c9b1156300194b
sha256
c3cbb25caf14859c25be44fd069db3f974dc56d719668dc452e050f7ece13e39
sha512
f01d3d3d0e47f7a011efb4aa39f740e9ded01d37070cae1d7cc8451889ed20dd99cfe2cdba7d2b649c7c62ba5e316fcf23ea986e510b5ad57c5dfd3ad2d5ee88
ripemd-160
224a2b69dd1eec12acbde7658a132f2042474fd1
Diameter
42462860
Circumference
133401009.02641
Area
1.4161470925368E+15
Volume
4.0089103819865E+22
Surface area
5.6645883701473E+15
Circumference
133401009.02641
Perimeter
84925720
Area
450773619844900
Diagonal
30025776.254575
Surface area
2704641719069400
Volume
9.5705685555836E+21
Space diagonal
36773915.477342
Perimeter
63694290
Area
1.9519070307078E+14
Altitude
18386957.738671
Surface area
1.9519070307078E+14
Volume
1.1279023209107E+21
Height
10008592.084858