20781073 is an odd 8-digits composite number following 20781072
and preceding 20781074 . In scientific notation, it is written as 2.0781073 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20643300 positive integers (up to 20781073) that are relatively prime to 20781073.
20781073 has 4 divisors, whose sum is 20918848
The reverse of 20781073 is 37018702
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred eighty-one thousand seventy-three
Scientific notation
2.0781073 × 10^7
Engineering notation
2.0781073 × 10^6
Prime Factorization
151 × 137623
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20781073
Product of the distinct prime numbers
The prime factorization of 20781073 is 151 × 137623.
Since it has a total of 2 prime factors.
7 , 1 , 61 , 88 , 602 , 926 , 8781 , 117 , 34898 , 38708 , 115130 , 203922 , 4384828 , 1318291 , 15935465 , 46529942 , 960627296 , 918908507 , 2420100597 , 470288415
n×2
41562146
n×3
62343219
n×4
83124292
n×5
103905365
n÷2
10390536.5
n÷3
6927024.3333333
n÷3
5195268.25
n÷5
4156214.6
n2
431852995031329
n3
8.9743686150147E+21
n4
1.8649700931753E+29
n5
3.8756079649093E+36
2 √n
4558.6262185005
3 √n
274.93033166305
4 √n
67.51759932418
5 √n
29.075928591635
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
-20781072
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 20781073 can be divided by 4 positive divisors.
The sum of these divisors (counting 20781073) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001100000010001
3
Ternary
1110002210021101
4
Quaternary
1033101200101
5
Quinary
20304443243
6
Senary
2021224401
8
Octal
117214021
10
Decimal
20781073
12
Duodecimal
6b62101
16
Hexadecimal
13d1811
20
Vigesimal
69hcdd
36
Base36
cdes1
md5
580749fc3e24a334d232a8f16897053d
sha1
8ee1296bf73f101b4647f7ba2e5658a8706190ce
sha256
b9c50b836e0de352e12a3f19afd816cc0af90dbc56c47613d17df6e9d58d546c
sha512
df568513354a059d2c524c590bd153553241fc5bd97af3ee2dbbfee32bc52317ae5a6773ac6ae8462f43b0fcccbe3e24125d8bd3a265f33cb5fa034ce72d7c52
ripemd-160
1f3a03450af38ba61dadb41fd6f1466782fe6f44
Diameter
41562146
Circumference
130571332.54103
Area
1.3567061966212E+15
Volume
3.7591747348716E+22
Surface area
5.4268247864847E+15
Circumference
130571332.54103
Perimeter
83124292
Area
431852995031329
Diagonal
29388875.277265
Surface area
2591117970187974
Volume
8.9743686150147E+21
Space diagonal
35993874.271798
Perimeter
62343219
Area
1.8699783219876E+14
Altitude
17996937.135899
Surface area
1.8699783219876E+14
Volume
1.0576394840908E+21
Height
9796291.7590884