21431437 is an odd 8-digits composite number following 21431436
and preceding 21431438 . In scientific notation, it is written as 2.1431437 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 21277116 positive integers (up to 21431437) that are relatively prime to 21431437.
21431437 has 4 divisors, whose sum is 21585760
The reverse of 21431437 is 73413412
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred thirty-one thousand four hundred thirty-seven
Scientific notation
2.1431437 × 10^7
Engineering notation
2.1431437 × 10^6
Prime Factorization
139 × 154183
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431437
Product of the distinct prime numbers
The prime factorization of 21431437 is 139 × 154183.
Since it has a total of 2 prime factors.
2 , 1 , 83 , 24 , 695 , 191 , 3801 , 6627 , 32816 , 94485 , 380085 , 939840 , 5278778 , 5968251 , 55515190 , 68316213 , 708088513 , 421244487 , 9746808686 , 5788420443
n×2
42862874
n×3
64294311
n×4
85725748
n×5
107157185
n÷2
10715718.5
n÷3
7143812.3333333
n÷3
5357859.25
n÷5
4286287.4
n2
459306491884969
n3
9.8435981445237E+21
n4
2.1096245348768E+29
n5
4.5212285312866E+36
2 √n
4629.4100056055
3 √n
277.76899274735
4 √n
68.039767824453
5 √n
29.255684133426
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21431436
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21431437 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431437) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000010010001101
3
Ternary
1111022211101221
4
Quaternary
1101300102031
5
Quinary
20441301222
6
Senary
2043203341
8
Octal
121602215
10
Decimal
21431437
12
Duodecimal
7216551
16
Hexadecimal
147048d
20
Vigesimal
6diibh
36
Base36
crclp
md5
fa84dbb172b78644af49d003dca23ebd
sha1
b0a84e3877e579485b65e544267766d9999b9b84
sha256
5d322c8b6e5cb31878946c6f165472d413b52d34482f633692557295a36f6b9f
sha512
4357098041744967679100fd3d5f5c3130ad8a311d16ec2d08e30081a0bc3f6c0c533f1d5bafbfe5fa75403a199397c35efcd3116d907ce6c6c3fca36bae9ac7
ripemd-160
b6f1851c526e4c9661254968dee24093f66acc63
Diameter
42862874
Circumference
134657690.07014
Area
1.4429539006519E+15
Volume
4.1232767487634E+22
Surface area
5.7718156026077E+15
Circumference
134657690.07014
Perimeter
85725748
Area
459306491884969
Diagonal
30308628.866545
Surface area
2755838951309814
Volume
9.8435981445237E+21
Space diagonal
37120337.763212
Perimeter
64294311
Area
1.9888554504775E+14
Altitude
18560168.881606
Surface area
1.9888554504775E+14
Volume
1.1600791665447E+21
Height
10102876.288848