20781027 is an odd 8-digits composite number following 20781026
and preceding 20781028 . In scientific notation, it is written as 2.0781027 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13854012 positive integers (up to 20781027) that are relatively prime to 20781027.
20781027 has 4 divisors, whose sum is 23090040
The reverse of 20781027 is 72018702
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven hundred eighty-one thousand twenty-seven
Scientific notation
2.0781027 × 10^7
Engineering notation
2.0781027 × 10^6
Prime Factorization
9 × 2309003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20781027
Product of the distinct prime numbers
The prime factorization of 20781027 is 9 × 2309003.
Since it has a total of 2 prime factors.
7 , 4 , 99 , 9 , 479 , 525 , 2323 , 2072 , 1676 , 74716 , 251415 , 845545 , 7911951 , 4628443 , 52374335 , 1885611 , 866413576 , 376094560 , 7754328195 , 7652949120
n×2
41562054
n×3
62343081
n×4
83124108
n×5
103905135
n÷2
10390513.5
n÷3
6927009
n÷3
5195256.75
n÷5
4156205.4
n2
431851083174729
n3
8.9743090194333E+21
n4
1.8649535803919E+29
n5
3.875565070787E+36
2 √n
4558.621173118
3 √n
274.93012880531
4 √n
67.517561960708
5 √n
29.075915719404
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
-20781026
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 20781027 can be divided by 4 positive divisors.
The sum of these divisors (counting 20781027) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001011111100011
3
Ternary
1110002210012200
4
Quaternary
1033101133203
5
Quinary
20304443102
6
Senary
2021224243
8
Octal
117213743
10
Decimal
20781027
12
Duodecimal
6b62083
16
Hexadecimal
13d17e3
20
Vigesimal
69hcb7
36
Base36
cdeqr
md5
c56f6a9f03ac569c089429ba8682e3cf
sha1
d50a81391c83c0a6547cfa447ee9e566fb404bbe
sha256
4ba3f70a2a1b9c70d5ab1ec5559cc78d14727564f499bec087c5d7fbd8d141b6
sha512
a6bdda44e2f86fae01440e25c786e062e6773e4662df019ac82bb956a509fb735d2efa8876a58454526fe91cd6eab3315f0b63436d8a82f55ac14fa0f55c950c
ripemd-160
7b5f0a451ea69a5b4357dfce87261c64f31cf17b
Diameter
41562054
Circumference
130571043.5145
Area
1.3567001903465E+15
Volume
3.7591497715328E+22
Surface area
5.4268007613861E+15
Circumference
130571043.5145
Perimeter
83124108
Area
431851083174729
Diagonal
29388810.223441
Surface area
2591106499048374
Volume
8.9743090194333E+21
Space diagonal
35993794.597461
Perimeter
62343081
Area
1.8699700434057E+14
Altitude
17996897.29873
Surface area
1.8699700434057E+14
Volume
1.0576324606841E+21
Height
9796270.0744805