20136721 is an odd 8-digits composite number following 20136720
and preceding 20136722 . In scientific notation, it is written as 2.0136721 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 17121280 positive integers (up to 20136721) that are relatively prime to 20136721.
20136721 has 16 divisors, whose sum is 23405760
The reverse of 20136721 is 12763102
Previous prime number is 257
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred thirty-six thousand seven hundred twenty-one
Scientific notation
2.0136721 × 10^7
Engineering notation
2.0136721 × 10^6
Prime Factorization
11 × 17 × 257 × 419
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20136721
Product of the distinct prime numbers
The prime factorization of 20136721 is 11 × 17 × 257 × 419.
Since it has a total of 4 prime factors.
9 , 10 , 70 , 88 , 311 , 565 , 4303 , 5560 , 6084 , 1836 , 649717 , 501185 , 3494576 , 809091 , 95379429 , 29283740 , 22739017 , 91605555 , 9206341409 , 9909736104
n×2
40273442
n×3
60410163
n×4
80546884
n×5
100683605
n÷2
10068360.5
n÷3
6712240.3333333
n÷3
5034180.25
n÷5
4027344.2
n2
405487532631841
n3
8.1651893135858E+21
n4
1.6442013911986E+29
n5
3.3108824682378E+36
2 √n
4487.3957926619
3 √n
272.05888737265
4 √n
66.988027233693
5 √n
28.893340161821
1 , 11 , 17 , 187 , 257 , 419 , 2827 , 4369 , 4609 , 7123 , 48059 , 78353 , 107683 , 1184513 , 1830611 , 20136721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20136720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20136721 can be divided by 16 positive divisors.
The sum of these divisors (counting 20136721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100001100010001
3
Ternary
1101220001101111
4
Quaternary
1030310030101
5
Quinary
20123333341
6
Senary
1555333321
8
Octal
114641421
10
Decimal
20136721
12
Duodecimal
68b1241
16
Hexadecimal
1334311
20
Vigesimal
65h1g1
36
Base36
bzlld
md5
ec139f5e0a1b363b8231eeb95c2d2874
sha1
0cea129f3c559104a6b25e6dfc86345c31793044
sha256
4f9d32c4857993436221c2bd7e72bdfe8fdd07e61366140d7ddc751a75a447fb
sha512
5335ef5e9761467b4a2eaa22df3771e4af553971e3bbef90388b914604c500bb0ffd3a74b06eec4bc09bfe9ee93de2e7367559d2e8ba2c3a4f7a03e7df872248
ripemd-160
6c3670bc7d06249266f9e5a91c13c67dfc02fbb9
Diameter
40273442
Circumference
126522749.52197
Area
1.2738766536384E+15
Volume
3.4202265016975E+22
Surface area
5.0955066145538E+15
Circumference
126522749.52197
Perimeter
80546884
Area
405487532631841
Diagonal
28477623.939923
Surface area
2432925195791046
Volume
8.1651893135858E+21
Space diagonal
34877823.869839
Perimeter
60410163
Area
1.7558125208852E+14
Altitude
17438911.93492
Surface area
1.7558125208852E+14
Volume
9.6227678888474E+20
Height
9492541.3133077