20138780 is an even 8-digits composite number following 20138779
and preceding 20138781 . In scientific notation, it is written as 2.0138780 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 24 positive divisors.
There are 8033792 positive integers (up to 20138780) that are relatively prime to 20138780.
20138780 has 24 divisors, whose sum is 42405552
The reverse of 20138780 is 08783102
Previous prime number is 443
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand seven hundred eighty
Scientific notation
2.0138780 × 10^7
Engineering notation
2.0138780 × 10^6
Prime Factorization
2 × 2 × 5 × 443 × 2273
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10069390
Product of the distinct prime numbers
The prime factorization of 20138780 is 2 × 2 × 5 × 443 × 2273.
Since it has a total of 5 prime factors.
2 , 6 , 14 , 71 , 915 , 665 , 6866 , 7475 , 18642 , 11911 , 891278 , 829167 , 6204066 , 492316 , 54430192 , 65060983 , 292837933 , 85255025 , 3466259968 , 4029833853
n×2
40277560
n×3
60416340
n×4
80555120
n×5
100693900
n÷2
10069390
n÷3
6712926.6666667
n÷3
5034695
n÷5
4027756
n2
405570459888400
n3
8.1676942661913E+21
n4
1.6448739793409E+29
n5
3.3125755197671E+36
2 √n
4487.6252071669
3 √n
272.06815982168
4 √n
66.989739566346
5 √n
28.893931012281
1 , 2 , 4 , 5 , 10 , 20 , 443 , 886 , 1772 , 2215 , 2273 , 4430 , 4546 , 8860 , 9092 , 11365 , 22730 , 45460 , 1006939 , 2013878 , 4027756 , 5034695 , 10069390 , 20138780
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138779
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138780 can be divided by 24 positive divisors.
The sum of these divisors (counting 20138780) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110100101100011100
3
Ternary
1101220011012202
4
Quaternary
1030310230130
5
Quinary
20123420110
6
Senary
1555351032
8
Octal
114645434
10
Decimal
20138780
12
Duodecimal
68b2478
16
Hexadecimal
1334b1c
20
Vigesimal
65h6j0
36
Base36
bzn6k
md5
7c1cad0d49bba85188b7d36002bdb349
sha1
90455cf7162d91d049e977506663af0c0eb377f7
sha256
4db48dc209a518547ba9636f61d3c3b54cb6a7d7f2ace67f7369d348eba739da
sha512
1458e4349dcb1c6ae109755250f39004b77ea6ded408fd81edba1820656c2efcfb0fd6a3f1123ddefac319a508e915f799a5e22e7b7f31d5a7deec1e92f3e35a
ripemd-160
f4c1ee240c25222a1eaf1d63be1d2d3fdbc54fcd
Diameter
40277560
Circumference
126535686.60052
Area
1.2741371772984E+15
Volume
3.4212757737912E+22
Surface area
5.0965487091937E+15
Circumference
126535686.60052
Perimeter
80555120
Area
405570459888400
Diagonal
28480535.805648
Surface area
2433422759330400
Volume
8.1676942661913E+21
Space diagonal
34881390.162452
Perimeter
60416340
Area
1.7561716064395E+14
Altitude
17440695.081226
Surface area
1.7561716064395E+14
Volume
9.6257200038039E+20
Height
9493511.935216