21431449 is an odd 8-digits composite number following 21431448
and preceding 21431450 . In scientific notation, it is written as 2.1431449 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 18741456 positive integers (up to 21431449) that are relatively prime to 21431449.
21431449 has 8 divisors, whose sum is 24295040
The reverse of 21431449 is 94413412
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred thirty-one thousand four hundred forty-nine
Scientific notation
2.1431449 × 10^7
Engineering notation
2.1431449 × 10^6
Prime Factorization
13 × 19 × 86767
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21431449
Product of the distinct prime numbers
The prime factorization of 21431449 is 13 × 19 × 86767.
Since it has a total of 3 prime factors.
5 , 1 , 53 , 59 , 827 , 432 , 4965 , 7270 , 52832 , 38674 , 50657 , 991653 , 2631288 , 2046910 , 89374909 , 61162644 , 543082247 , 386046271 , 6252835925 , 946700721
n×2
42862898
n×3
64294347
n×4
85725796
n×5
107157245
n÷2
10715724.5
n÷3
7143816.3333333
n÷3
5357862.25
n÷5
4286289.8
n2
459307006239601
n3
9.8436146795667E+21
n4
2.1096292598078E+29
n5
4.521241189048E+36
2 √n
4629.4113016668
3 √n
277.76904459062
4 √n
68.039777348745
5 √n
29.255687409624
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
-21431448
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 21431449 can be divided by 8 positive divisors.
The sum of these divisors (counting 21431449) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110000010010011001
3
Ternary
1111022211102101
4
Quaternary
1101300102121
5
Quinary
20441301244
6
Senary
2043203401
8
Octal
121602231
10
Decimal
21431449
12
Duodecimal
7216561
16
Hexadecimal
1470499
20
Vigesimal
6diic9
36
Base36
crcm1
md5
c65955cca656008aac5bb98af34e68be
sha1
1da9690e26ef042ffd020e6991f53662b219c416
sha256
74866e58920e958479a00a22d442ba9ff61d2f0963c0f1f603d50b3dbf0c397f
sha512
986bc94c440181e7e4eecd2bc474850bbc6febacdee8f11d015c18a2d1a5f736bf011557163f2173fba5a9922b79f2d586281f6a018fd673efa5a1b62e784104
ripemd-160
b805602a40c3f576042cb880d4e404be728e6e3d
Diameter
42862898
Circumference
134657765.46837
Area
1.4429555165447E+15
Volume
4.123283674946E+22
Surface area
5.7718220661786E+15
Circumference
134657765.46837
Perimeter
85725796
Area
459307006239601
Diagonal
30308645.837107
Surface area
2755842037437606
Volume
9.8436146795667E+21
Space diagonal
37120358.547821
Perimeter
64294347
Area
1.9888576776984E+14
Altitude
18560179.273911
Surface area
1.9888576776984E+14
Volume
1.1600811152182E+21
Height
10102881.945702