20781201 is an odd 8-digits composite number following 20781200
and preceding 20781202 . In scientific notation, it is written as 2.0781201 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 11874960 positive integers (up to 20781201) that are relatively prime to 20781201.
20781201 has 4 divisors, whose sum is 21770804
The reverse of 20781201 is 10218702
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million seven hundred eighty-one thousand two hundred one
Scientific notation
2.0781201 × 10^7
Engineering notation
2.0781201 × 10^6
Prime Factorization
21 × 989581
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20781201
Product of the distinct prime numbers
The prime factorization of 20781201 is 21 × 989581.
Since it has a total of 2 prime factors.
1 , 10 , 100 , 18 , 276 , 102 , 5445 , 8451 , 96932 , 5991 , 736924 , 15665 , 7368044 , 7541505 , 5726909 , 22309952 , 297872726 , 81082953 , 2315330842 , 7116371003
n×2
41562402
n×3
62343603
n×4
83124804
n×5
103906005
n÷2
10390600.5
n÷3
6927067
n÷3
5195300.25
n÷5
4156240.2
n2
431858315002401
n3
8.9745344475862E+21
n4
1.8650160423671E+29
n5
3.8757273244656E+36
2 √n
4558.6402577962
3 √n
274.93089613519
4 √n
67.517703291775
5 √n
29.075964409898
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
-20781200
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 20781201 can be divided by 4 positive divisors.
The sum of these divisors (counting 20781201) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001100010010001
3
Ternary
1110002210110010
4
Quaternary
1033101202101
5
Quinary
20304444301
6
Senary
2021225133
8
Octal
117214221
10
Decimal
20781201
12
Duodecimal
6b621a9
16
Hexadecimal
13d1891
20
Vigesimal
69hd01
36
Base36
cdevl
md5
b6e543300bb019e354c65a1b8e1f37db
sha1
f97871a90e9e0eab15de6f60dc0539453c2180d0
sha256
2e9644c6769e95acf91fcf2d5205bddb20da69749d51a4804d21967bee1de5c7
sha512
576e5065dfba6d19ae92be11de09806cdecda650f384e2fdffdf93750ebfa74352fe904d22fca42249e361a85aaf1bce77a62e2bc6902d81c5db8d9be1f43e34
ripemd-160
b8b5a8525b3737e82540d18550f6fcd977b26ac6
Diameter
41562402
Circumference
130572136.78875
Area
1.3567229098032E+15
Volume
3.7592441986567E+22
Surface area
5.4268916392128E+15
Circumference
130572136.78875
Perimeter
83124804
Area
431858315002401
Diagonal
29389056.296601
Surface area
2591149890014406
Volume
8.9745344475862E+21
Space diagonal
35994095.974301
Perimeter
62343603
Area
1.8700013581381E+14
Altitude
17997047.987151
Surface area
1.8700013581381E+14
Volume
1.0576590276467E+21
Height
9796352.0988671