20129145 is an odd 8-digits composite number following 20129144
and preceding 20129146 . In scientific notation, it is written as 2.0129145 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 10574784 positive integers (up to 20129145) that are relatively prime to 20129145.
20129145 has 8 divisors, whose sum is 21792640
The reverse of 20129145 is 54192102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-nine thousand one hundred forty-five
Scientific notation
2.0129145 × 10^7
Engineering notation
2.0129145 × 10^6
Prime Factorization
15 × 67 × 20029
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20129145
Product of the distinct prime numbers
The prime factorization of 20129145 is 15 × 67 × 20029.
Since it has a total of 3 prime factors.
6 , 4 , 65 , 63 , 674 , 72 , 6717 , 6078 , 33818 , 43399 , 364350 , 42496 , 7309071 , 1335468 , 48344327 , 65665261 , 429449101 , 81300616 , 1306816408 , 5445518939
n×2
40258290
n×3
60387435
n×4
80516580
n×5
100645725
n÷2
10064572.5
n÷3
6709715
n÷3
5032286.25
n÷5
4025829
n2
405182478431025
n3
8.1559768597975E+21
n4
1.6417284082751E+29
n5
3.3046589180788E+36
2 √n
4486.5515710844
3 √n
272.02476436145
4 √n
66.981725650243
5 √n
28.891165737351
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
-20129144
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 20129145 can be divided by 8 positive divisors.
The sum of these divisors (counting 20129145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010010101111001
3
Ternary
1101212122222220
4
Quaternary
1030302111321
5
Quinary
20123113040
6
Senary
1555234253
8
Octal
114622571
10
Decimal
20129145
12
Duodecimal
68a8989
16
Hexadecimal
1332579
20
Vigesimal
65g2h5
36
Base36
bzfqx
md5
21dcdd17ed8528c65334fb3971d92a44
sha1
3fa81f19f2685c97dec459cdad1df3a721958170
sha256
d798adce451ef5b75905781623e98e03c441421ccc81eeda6824baf683c23eb6
sha512
f66b542d25ecdd8f9e91fd21ee9e280157507eb683956a48856c82a51624f1bb49cc15c93fc2ed09274d6c558132c928ce5a147aed32280715419718a2a2d7d5
ripemd-160
e759a928a88c27eda4504bdcd22acd22a82e094e
Diameter
40258290
Circumference
126475148.11009
Area
1.2729182976022E+15
Volume
3.4163675980784E+22
Surface area
5.0916731904089E+15
Circumference
126475148.11009
Perimeter
80516580
Area
405182478431025
Diagonal
28466909.857975
Surface area
2431094870586150
Volume
8.1559768597975E+21
Space diagonal
34864701.852921
Perimeter
60387435
Area
1.754491597448E+14
Altitude
17432350.926461
Surface area
1.754491597448E+14
Volume
9.6119109079389E+20
Height
9488969.9526582