21131271 is an odd 8-digits composite number following 21131270
and preceding 21131272 . In scientific notation, it is written as 2.1131271 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 12074976 positive integers (up to 21131271) that are relatively prime to 21131271.
21131271 has 8 divisors, whose sum is 26833440
The reverse of 21131271 is 17213112
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one hundred thirty-one thousand two hundred seventy-one
Scientific notation
2.1131271 × 10^7
Engineering notation
2.1131271 × 10^6
Prime Factorization
9 × 7 × 335417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131271
Product of the distinct prime numbers
The prime factorization of 21131271 is 9 × 7 × 335417.
Since it has a total of 3 prime factors.
4 , 8 , 11 , 48 , 255 , 183 , 3832 , 5772 , 59236 , 85222 , 396844 , 704762 , 7681937 , 8662486 , 27205542 , 2234622 , 893236860 , 602594477 , 2269543916 , 982241392
n×2
42262542
n×3
63393813
n×4
84525084
n×5
105656355
n÷2
10565635.5
n÷3
7043757
n÷3
5282817.75
n÷5
4226254.2
n2
446530614075441
n3
9.4357594158246E+21
n4
1.9938958930659E+29
n5
4.2133554462163E+36
2 √n
4596.8762219577
3 √n
276.46609178194
4 √n
67.800267123056
5 √n
29.173270839446
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
-21131270
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 21131271 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131271) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000000000111
3
Ternary
1110202120122200
4
Quaternary
1100213000013
5
Quinary
20402200041
6
Senary
2032525543
8
Octal
120470007
10
Decimal
21131271
12
Duodecimal
70b08b3
16
Hexadecimal
1427007
20
Vigesimal
6c183b
36
Base36
ckwzr
md5
851cb5c198fb0068a7c18413cb5345f6
sha1
729e2487be989079e7afacceb770e10b6eb2dc9d
sha256
453efe1814cad4d53b771f3a6580bc9e152992d45b56a2884aa2f2254d594675
sha512
40f6e65283c9633380a706a3500dfba8fab2312b812d516dc49ba0433fb99e66639782146eb3e26ef76b81296ccaa09b13352c25e1b8fe72d3ec7ce64030f059
ripemd-160
789a96f6a4cbf1a59a2e141c0b4939a31bd657e7
Diameter
42262542
Circumference
132771691.46923
Area
1.4028172967823E+15
Volume
3.9524416615727E+22
Surface area
5.6112691871294E+15
Circumference
132771691.46923
Perimeter
84525084
Area
446530614075441
Diagonal
29884130.038381
Surface area
2679183684452646
Volume
9.4357594158246E+21
Space diagonal
36600435.000507
Perimeter
63393813
Area
1.933534276784E+14
Altitude
18300217.500253
Surface area
1.933534276784E+14
Volume
1.1120149114291E+21
Height
9961376.6794604