20540945 is an odd 8-digits composite number following 20540944
and preceding 20540946 . In scientific notation, it is written as 2.0540945 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 16122496 positive integers (up to 20540945) that are relatively prime to 20540945.
20540945 has 8 divisors, whose sum is 25114536
The reverse of 20540945 is 54904502
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred forty thousand nine hundred forty-five
Scientific notation
2.0540945 × 10^7
Engineering notation
2.0540945 × 10^6
Prime Factorization
5 × 53 × 77513
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20540945
Product of the distinct prime numbers
The prime factorization of 20540945 is 5 × 53 × 77513.
Since it has a total of 3 prime factors.
4 , 1 , 20 , 30 , 174 , 373 , 5090 , 6944 , 74075 , 94082 , 170681 , 805253 , 6993378 , 1759566 , 16021302 , 47334894 , 873528109 , 545768368 , 1121034318 , 9474616853
n×2
41081890
n×3
61622835
n×4
82163780
n×5
102704725
n÷2
10270472.5
n÷3
6846981.6666667
n÷3
5135236.25
n÷5
4108189
n2
421930421493025
n3
8.666849581715E+21
n4
1.7802528058128E+29
n5
3.6568074970297E+36
2 √n
4532.2119323792
3 √n
273.86727459267
4 √n
67.321704764356
5 √n
29.008420614023
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
-20540944
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 20540945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20540945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010110111000010001
3
Ternary
1102122120212202
4
Quaternary
1032112320101
5
Quinary
20224302240
6
Senary
2012132545
8
Octal
116267021
10
Decimal
20540945
12
Duodecimal
6a67155
16
Hexadecimal
1396e11
20
Vigesimal
687c75
36
Base36
c89ht
md5
751985426744a6a7f3c141c726483e1a
sha1
050a96dfe9b1cc15af8c68e3c96be5cbbb548ce4
sha256
e53fe94a106f026bfe9861ac843939e770e79ab47a68162a4576516950517f55
sha512
9a73caec2ec1476d210945de9f045f6e7df24780cd6d3d396f47eec0256de141afc3cb2708b66e63f19a566b15462aa58809da7976fa497131c785613b371a3c
ripemd-160
1719c0b78231ea9c3ede92d577387f6ff75ae51d
Diameter
41081890
Circumference
129062563.81958
Area
1.3255335124885E+15
Volume
3.6303614634245E+22
Surface area
5.3021340499541E+15
Circumference
129062563.81958
Perimeter
82163780
Area
421930421493025
Diagonal
29049283.00296
Surface area
2531582528958150
Volume
8.666849581715E+21
Space diagonal
35577960.375478
Perimeter
61622835
Area
1.8270123182122E+14
Altitude
17788980.187739
Surface area
1.8270123182122E+14
Volume
1.0213980184591E+21
Height
9683094.3343199