20784445 is an odd 8-digits composite number following 20784444
and preceding 20784446 . In scientific notation, it is written as 2.0784445 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 14327040 positive integers (up to 20784445) that are relatively prime to 20784445.
20784445 has 16 divisors, whose sum is 22296960
The reverse of 20784445 is 54448702
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seven hundred eighty-four thousand four hundred forty-five
Scientific notation
2.0784445 × 10^7
Engineering notation
2.0784445 × 10^6
Prime Factorization
55 × 29 × 157 × 83
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20784445
Product of the distinct prime numbers
The prime factorization of 20784445 is 55 × 29 × 157 × 83.
Since it has a total of 4 prime factors.
2 , 1 , 46 , 38 , 647 , 127 , 4194 , 451 , 16448 , 73058 , 771915 , 610908 , 7662357 , 1633615 , 77582673 , 74097681 , 50455976 , 414600673 , 7263376125 , 9644668312
n×2
41568890
n×3
62353335
n×4
83137780
n×5
103922225
n÷2
10392222.5
n÷3
6928148.3333333
n÷3
5196111.25
n÷5
4156889
n2
431993153958025
n3
8.9787379488171E+21
n4
1.866180850666E+29
n5
3.8787533250721E+36
2 √n
4558.996051764
3 √n
274.94520120227
4 √n
67.520338060202
5 √n
29.076872120088
1 , 29 , 55 , 83 , 157 , 1595 , 2407 , 4553 , 4565 , 8635 , 13031 , 132385 , 250415 , 377899 , 716705 , 20784445
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20784444
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20784445 can be divided by 16 positive divisors.
The sum of these divisors (counting 20784445) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010010100111101
3
Ternary
1110002221220021
4
Quaternary
1033102110331
5
Quinary
20310100240
6
Senary
2021252141
8
Octal
117222475
10
Decimal
20784445
12
Duodecimal
6b64051
16
Hexadecimal
13d253d
20
Vigesimal
69i125
36
Base36
cdhdp
md5
fb0261b1a985571fa97aee06f40dd428
sha1
db5e915cc74775a812b44808f641c592986abafd
sha256
b54323810bebe638297dc7c3115b97b62db60aab85a67372fd90e9e52e6b3a43
sha512
9d94e43fded5c14a3abdd1b42dc93661b299cf893137aaa192cebb74607ea1671f1325f0f3090852d5273024c27101cb913aad35f2e4fc4b7a5f0d6d75ac3e9c
ripemd-160
970ed04d786564460d4fb3ece5f4bc4696c37a40
Diameter
41568890
Circumference
130592519.44188
Area
1.3571465188756E+15
Volume
3.7610049571349E+22
Surface area
5.4285860755025E+15
Circumference
130592519.44188
Perimeter
83137780
Area
431993153958025
Diagonal
29393644.005398
Surface area
2591958923748150
Volume
8.9787379488171E+21
Space diagonal
35999714.747121
Perimeter
62353335
Area
1.8705852279431E+14
Altitude
17999857.37356
Surface area
1.8705852279431E+14
Volume
1.0581544150176E+21
Height
9797881.3351326