21431447 is an odd 8-digits composite number following 21431446
and preceding 21431448 . In scientific notation, it is written as 2.1431447 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20740080 positive integers (up to 21431447) that are relatively prime to 21431447.
21431447 has 4 divisors, whose sum is 22122816
The reverse of 21431447 is 74413412
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million four hundred thirty-one thousand four hundred forty-seven
Scientific notation
2.1431447 × 10^7
Engineering notation
2.1431447 × 10^6
Prime Factorization
31 × 691337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431447
Product of the distinct prime numbers
The prime factorization of 21431447 is 31 × 691337.
Since it has a total of 2 prime factors.
7 , 10 , 30 , 65 , 460 , 420 , 1769 , 5624 , 18667 , 98774 , 716323 , 538226 , 2728131 , 7874134 , 66529956 , 33953640 , 635288784 , 181445737 , 6403217667 , 7979638084
n×2
42862894
n×3
64294341
n×4
85725788
n×5
107157235
n÷2
10715723.5
n÷3
7143815.6666667
n÷3
5357861.75
n÷5
4286289.4
n2
459306920513809
n3
9.8436119237249E+21
n4
2.1096284723188E+29
n5
4.5212390794191E+36
2 √n
4629.4110856566
3 √n
277.76903595008
4 √n
68.039775761363
5 √n
29.255686863591
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
-21431446
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 21431447 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431447) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000010010010111
3
Ternary
1111022211102022
4
Quaternary
1101300102113
5
Quinary
20441301242
6
Senary
2043203355
8
Octal
121602227
10
Decimal
21431447
12
Duodecimal
721655b
16
Hexadecimal
1470497
20
Vigesimal
6diic7
36
Base36
crclz
md5
ec50121baad744a313e2a0037bdb483d
sha1
ba70cf0b0144a1dafe82cda85872e82daee6a096
sha256
80e761bd3200a80575de0047337f279c1ebadfcaf6025cd2397783062f471ca6
sha512
44d462443c4206efbeef88ba555c7fe0ea5ec6a41eeba5a53bd0027830d706a9fe8fd905544c9efb54f04b522b20c4b78bbda719ff5651d3b7f4322fec55c1e7
ripemd-160
930f2adb3085151ad03af0a3db59f4e4ba3058c6
Diameter
42862894
Circumference
134657752.902
Area
1.4429552472291E+15
Volume
4.1232825205817E+22
Surface area
5.7718209889165E+15
Circumference
134657752.902
Perimeter
85725788
Area
459306920513809
Diagonal
30308643.00868
Surface area
2755841523082854
Volume
9.8436119237249E+21
Space diagonal
37120355.08372
Perimeter
64294341
Area
1.9888573064948E+14
Altitude
18560177.54186
Surface area
1.9888573064948E+14
Volume
1.1600807904391E+21
Height
10102881.002893