20761921 is an odd 8-digits composite number following 20761920
and preceding 20761922 . In scientific notation, it is written as 2.0761921 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 19769328 positive integers (up to 20761921) that are relatively prime to 20761921.
20761921 has 8 divisors, whose sum is 21778560
The reverse of 20761921 is 12916702
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred sixty-one thousand nine hundred twenty-one
Scientific notation
2.0761921 × 10^7
Engineering notation
2.0761921 × 10^6
Prime Factorization
37 × 47 × 11939
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20761921
Product of the distinct prime numbers
The prime factorization of 20761921 is 37 × 47 × 11939.
Since it has a total of 3 prime factors.
3 , 10 , 48 , 95 , 405 , 757 , 3664 , 8094 , 75314 , 10454 , 436786 , 38833 , 4928037 , 4292287 , 98138920 , 11422508 , 85937333 , 785307754 , 8674002089 , 8353612985
n×2
41523842
n×3
62285763
n×4
83047684
n×5
103809605
n÷2
10380960.5
n÷3
6920640.3333333
n÷3
5190480.25
n÷5
4152384.2
n2
431057363610241
n3
8.9495789297441E+21
n4
1.8581045072261E+29
n5
3.8577818988773E+36
2 √n
4556.5251014342
3 √n
274.84584638638
4 √n
67.502037757643
5 √n
29.07056729406
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
-20761920
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 20761921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20761921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111001100110101000001
3
Ternary
1110001211000001
4
Quaternary
1033030311001
5
Quinary
20303340141
6
Senary
2021000001
8
Octal
117146501
10
Decimal
20761921
12
Duodecimal
6b53001
16
Hexadecimal
13ccd41
20
Vigesimal
69f4g1
36
Base36
cd001
md5
f084556b7ca594b525ab2f8a2d4e9172
sha1
4e83cc2bdbe06500c9622d0bfdd39907d5c82682
sha256
52a77f31b05275c58d94bb1bc1b554a97baaca0b0b8a7db3b0ada1cbf76bffc7
sha512
4543870565ae1193e1c59aa49690181d4988c570821a9ef2156ba81bfadd500808deb4ca280e1179a0ba7e56e6535ff99081a340af855922f9195d1005b45191
ripemd-160
78d5e877088e6a3a52792c865109db221b74fd54
Diameter
41523842
Circumference
130450996.97602
Area
1.3542066467937E+15
Volume
3.7487908557875E+22
Surface area
5.4168265871749E+15
Circumference
130450996.97602
Perimeter
83047684
Area
431057363610241
Diagonal
29361790.259119
Surface area
2586344181661446
Volume
8.9495789297441E+21
Space diagonal
35960702.034731
Perimeter
62285763
Area
1.8665331368741E+14
Altitude
17980351.017366
Surface area
1.8665331368741E+14
Volume
1.0547179916644E+21
Height
9787263.4197063