20781164 is an even 8-digits composite number following 20781163
and preceding 20781165 . In scientific notation, it is written as 2.0781164 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 10375344 positive integers (up to 20781164) that are relatively prime to 20781164.
20781164 has 12 divisors, whose sum is 36420384
The reverse of 20781164 is 46118702
Previous prime number is 757
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred eighty-one thousand one hundred sixty-four
Scientific notation
2.0781164 × 10^7
Engineering notation
2.0781164 × 10^6
Prime Factorization
2 × 2 × 757 × 6863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10390582
Product of the distinct prime numbers
The prime factorization of 20781164 is 2 × 2 × 757 × 6863.
Since it has a total of 4 prime factors.
3 , 10 , 29 , 96 , 379 , 447 , 5444 , 1398 , 33378 , 63493 , 322611 , 619064 , 8092198 , 8242705 , 55210714 , 49595951 , 126280457 , 422439809 , 1532596758 , 753295809
n×2
41562328
n×3
62343492
n×4
83124656
n×5
103905820
n÷2
10390582
n÷3
6927054.6666667
n÷3
5195291
n÷5
4156232.8
n2
431856777194896
n3
8.9744865113986E+21
n4
1.8650027600916E+29
n5
3.8756928217917E+36
2 √n
4558.6361995667
3 √n
274.9307329677
4 √n
67.517673238691
5 √n
29.0759540562
1 , 2 , 4 , 757 , 1514 , 3028 , 6863 , 13726 , 27452 , 5195291 , 10390582 , 20781164
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20781163
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20781164 can be divided by 12 positive divisors.
The sum of these divisors (counting 20781164) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010001100001101100
3
Ternary
1110002210101202
4
Quaternary
1033101201230
5
Quinary
20304444124
6
Senary
2021225032
8
Octal
117214154
10
Decimal
20781164
12
Duodecimal
6b62178
16
Hexadecimal
13d186c
20
Vigesimal
69hci4
36
Base36
cdeuk
md5
bf6ddd768e36ff24ce883ce0edcde8f0
sha1
b1f5192d93acedec0f062314ad65d8b9a9d659c1
sha256
2b8fdc42be50f385f8fb38cd3a6cbde1097a7e042b9a4e7987d98d94754f1abe
sha512
44b91ffe3d08f6ad01df3bd22acf9dbf167f8c0418be67a39f35812efbc02a9b778fa8826dcbb4f5c3f989a33b34978fefc4bedc6d6f9d30d329c16cf70a6a83
ripemd-160
917f7f9f7a0ab422ec43f1c0ccd49fe14332dbfc
Diameter
41562328
Circumference
130571904.31089
Area
1.3567180786384E+15
Volume
3.7592241191934E+22
Surface area
5.4268723145538E+15
Circumference
130571904.31089
Perimeter
83124656
Area
431856777194896
Diagonal
29389003.9707
Surface area
2591140663169376
Volume
8.9744865113986E+21
Space diagonal
35994031.888421
Perimeter
62343492
Area
1.8699946992363E+14
Altitude
17997015.944211
Surface area
1.8699946992363E+14
Volume
1.0576533783129E+21
Height
9796334.6568998