20681761 is an odd 8-digits composite number following 20681760
and preceding 20681762 . In scientific notation, it is written as 2.0681761 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19485840 positive integers (up to 20681761) that are relatively prime to 20681761.
20681761 has 4 divisors, whose sum is 20696724
The reverse of 20681761 is 16718602
Previous prime number is 1541
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-one thousand seven hundred sixty-one
Scientific notation
2.0681761 × 10^7
Engineering notation
2.0681761 × 10^6
Prime Factorization
1541 × 13421
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20681761
Product of the distinct prime numbers
The prime factorization of 20681761 is 1541 × 13421.
Since it has a total of 2 prime factors.
9 , 1 , 70 , 69 , 237 , 791 , 1794 , 4848 , 80319 , 85267 , 662077 , 760790 , 2706019 , 685016 , 49958731 , 38319530 , 786515751 , 837271966 , 9274212546 , 8786120208
n×2
41363522
n×3
62045283
n×4
82727044
n×5
103408805
n÷2
10340880.5
n÷3
6893920.3333333
n÷3
5170440.25
n÷5
4136352.2
n2
427735238061121
n3
8.8463179648582E+21
n4
1.829574338792E+29
n5
3.783881920663E+36
2 √n
4547.7204179677
3 √n
274.49167141838
4 √n
67.436788312965
5 √n
29.048084751485
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
-20681760
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 20681761 can be divided by 4 positive divisors.
The sum of these divisors (counting 20681761) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111001010000100001
3
Ternary
1102220202001011
4
Quaternary
1032321100201
5
Quinary
20243304021
6
Senary
2015140521
8
Octal
116712041
10
Decimal
20681761
12
Duodecimal
6b14741
16
Hexadecimal
13b9421
20
Vigesimal
695481
36
Base36
cba5d
md5
7a97da4a42fa635ba95b45cde73b880e
sha1
794c4e5dfe1f1dc1c7f2ff4cad5fedc4d300bd31
sha256
1f4c4d19834ac7075d0ad6cd68217f933d17a2641604fa93f0f7fe283015dd2b
sha512
f16a3d351a2ad74af5d99673ef504a6d01b219999416f1fcc1278e8fe7d415c38766aa8d46c9b760dc9423fe118481bb9a586710b7c74bab0680620169ec1d85
ripemd-160
b519a8df46e7ad8a9aff503082facf0c01eacab9
Diameter
41363522
Circumference
129947336.8418
Area
1.3437698815743E+15
Volume
3.7055370039624E+22
Surface area
5.3750795262972E+15
Circumference
129947336.8418
Perimeter
82727044
Area
427735238061121
Diagonal
29248426.899959
Surface area
2566411428366726
Volume
8.8463179648582E+21
Space diagonal
35821860.841997
Perimeter
62045283
Area
1.8521479112736E+14
Altitude
17910930.420998
Surface area
1.8521479112736E+14
Volume
1.0425485702473E+21
Height
9749475.6333196