20402845 is an odd 8-digits composite number following 20402844
and preceding 20402846 . In scientific notation, it is written as 2.0402845 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16304640 positive integers (up to 20402845) that are relatively prime to 20402845.
20402845 has 8 divisors, whose sum is 24509880
The reverse of 20402845 is 54820402
Previous prime number is 1321
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred two thousand eight hundred forty-five
Scientific notation
2.0402845 × 10^7
Engineering notation
2.0402845 × 10^6
Prime Factorization
5 × 1321 × 3089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402845
Product of the distinct prime numbers
The prime factorization of 20402845 is 5 × 1321 × 3089.
Since it has a total of 3 prime factors.
8 , 2 , 72 , 32 , 155 , 324 , 8434 , 2119 , 41173 , 89670 , 63074 , 205646 , 4412484 , 1154389 , 83163913 , 1072048 , 410776939 , 397958414 , 4974001609 , 8123049733
n×2
40805690
n×3
61208535
n×4
81611380
n×5
102014225
n÷2
10201422.5
n÷3
6800948.3333333
n÷3
5100711.25
n÷5
4080569
n2
416276084094025
n3
8.4932164209774E+21
n4
1.7328577818866E+29
n5
3.5355228730875E+36
2 √n
4516.9508520682
3 √n
273.25214308129
4 √n
67.208264760134
5 √n
28.969309658738
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402844
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402845 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402845) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101001010011101
3
Ternary
1102101120102221
4
Quaternary
1031311022131
5
Quinary
20210342340
6
Senary
2005145341
8
Octal
115651235
10
Decimal
20402845
12
Duodecimal
69bb251
16
Hexadecimal
137529d
20
Vigesimal
67a725
36
Base36
c5axp
md5
3288e3a9a4f808155b4b28cc6139c993
sha1
6c5b29e013a84c145e1b151d13d569bb06b5423d
sha256
6566483f7f95a4bba47bbd11159b915f80e6a0ff00c45a8b04dda44cd855cd23
sha512
a5af921ef7805f5abea2b5262365111767c60c9fba87482779261045799b14cd3de0a2f2e021e69bd7685e77597a088fdbbb3765ad47715e699e9856f8853fe9
ripemd-160
fa6d5b6565e06444c244f787ccf47a98ded68556
Diameter
40805690
Circumference
128194855.92866
Area
1.3077698876549E+15
Volume
3.5576301751321E+22
Surface area
5.2310795506197E+15
Circumference
128194855.92866
Perimeter
81611380
Area
416276084094025
Diagonal
28853980.109996
Surface area
2497656504564150
Volume
8.4932164209774E+21
Space diagonal
35338764.158953
Perimeter
61208535
Area
1.8025283190667E+14
Altitude
17669382.079476
Surface area
1.8025283190667E+14
Volume
1.0009351542263E+21
Height
9617993.3699987