20211280 is an even 8-digits composite number following 20211279
and preceding 20211281 . In scientific notation, it is written as 2.0211280 × 10^7.
The sum of its digits is 16. It has a total of 6 prime factors and 20 positive divisors.
There are 8084480 positive integers (up to 20211280) that are relatively prime to 20211280.
20211280 has 20 divisors, whose sum is 46991412
The reverse of 20211280 is 08211202
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million two hundred eleven thousand two hundred eighty
Scientific notation
2.0211280 × 10^7
Engineering notation
2.0211280 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5 × 252641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2526410
Product of the distinct prime numbers
The prime factorization of 20211280 is 2 × 2 × 2 × 2 × 5 × 252641.
Since it has a total of 6 prime factors.
4 , 7 , 8 , 97 , 820 , 70 , 9882 , 6590 , 58619 , 92132 , 626632 , 273445 , 6799840 , 4920292 , 90753041 , 55322769 , 295508820 , 843465480 , 9794072212 , 5261822779
n×2
40422560
n×3
60633840
n×4
80845120
n×5
101056400
n÷2
10105640
n÷3
6737093.3333333
n÷3
5052820
n÷5
4042256
n2
408495839238400
n3
8.2562237856823E+21
n4
1.6686885067508E+29
n5
3.3726330642723E+36
2 √n
4495.6957192408
3 √n
272.39425237804
4 √n
67.049949435035
5 √n
28.914704862088
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 40 , 80 , 252641 , 505282 , 1010564 , 1263205 , 2021128 , 2526410 , 4042256 , 5052820 , 10105640 , 20211280
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20211279
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20211280 can be divided by 20 positive divisors.
The sum of these divisors (counting 20211280) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001101000110011001010000
3
Ternary
1102000211122221
4
Quaternary
1031012121100
5
Quinary
20133230110
6
Senary
2001110424
8
Octal
115063120
10
Decimal
20211280
12
Duodecimal
6928414
16
Hexadecimal
1346650
20
Vigesimal
666840
36
Base36
c174g
md5
bcc7db45c437becbcb25406ead27761c
sha1
3f445157e3f8505a107e21415d39a5871755928f
sha256
e13e0dfba2ae79821fe5b268ff2118be97d429e5e22086a911ef48f6e336e29a
sha512
10c331f2a33af1d17f7a94ad3419883198342c55aec55e34b32c1b7d12a8d0d56feb4ff0b82c38b8fc88219566b314b997d36eef0cf7704b5557fe271af9d52c
ripemd-160
6085e2ab1d20ff3f3e9a87d6dbebe34f54eb988a
Diameter
40422560
Circumference
126991217.53529
Area
1.2833275275734E+15
Volume
3.458358932199E+22
Surface area
5.1333101102934E+15
Circumference
126991217.53529
Perimeter
80845120
Area
408495839238400
Diagonal
28583066.28892
Surface area
2450975035430400
Volume
8.2562237856823E+21
Space diagonal
35006963.846001
Perimeter
60633840
Area
1.7688388706035E+14
Altitude
17503481.923
Surface area
1.7688388706035E+14
Volume
9.7300530430827E+20
Height
9527688.7629734