129126021 is an odd 9-digits composite number following 129126020
and preceding 129126022 . In scientific notation, it is written as 1.29126021 × 10^8.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 86084012 positive integers (up to 129126021) that are relatively prime to 129126021.
129126021 has 4 divisors, whose sum is 172168032
The reverse of 129126021 is 120621921
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-nine million one hundred twenty-six thousand twenty-one
Scientific notation
1.29126021 × 10^8
Engineering notation
1.29126021 × 10^6
Prime Factorization
3 × 43042007
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129126021
Product of the distinct prime numbers
The prime factorization of 129126021 is 3 × 43042007.
Since it has a total of 2 prime factors.
2 , 5 , 3 , 69 , 1 , 180 , 2438 , 4326 , 17507 , 53288 , 229837 , 612590 , 8858409 , 7049184 , 84444852 , 9447094 , 438615014 , 853904804 , 3676771831 , 4102078725
n×2
258252042
n×3
387378063
n×4
516504084
n×5
645630105
n÷2
64563010.5
n÷3
43042007
n÷3
32281505.25
n÷5
25825204.2
n2
16673529299292441
n3
2.1529864944446E+24
n4
2.7800657929436E+32
n5
3.5897883396102E+40
2 √n
11363.363102533
3 √n
505.4419175214
4 √n
106.59907646191
5 √n
41.898912774463
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129126020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129126021 can be divided by 4 positive divisors.
The sum of these divisors (counting 129126021) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100100111010000101
3
Ternary
22222222021121020
4
Quaternary
13230210322011
5
Quinary
231024013041
6
Senary
20451341353
8
Octal
754447205
10
Decimal
129126021
12
Duodecimal
372b1859
16
Hexadecimal
7b24e85
20
Vigesimal
2070f11
36
Base36
24vm9x
md5
db82f258853294f849aaa40ae0c86423
sha1
b4030b33757aa4ea760a8096a11d530734148907
sha256
3fb75d07e6fc8d5a837a62f03c51f34952404fc84875dad667694c4aa893f7fb
sha512
9ffae607625ab9b1118075bbd259a00f1743fa4c4efe42301ac0da0bd0f2dd757520c87942dfa8e90504f30b65d0ea82301a842cec8a3d5daa9b784b244ba7ba
ripemd-160
ca594e6664af95bf086c8f2503f358294e762a6e
Diameter
258252042
Circumference
811322717.92176
Area
5.2381437156071E+16
Volume
9.0184087389667E+24
Surface area
2.0952574862429E+17
Circumference
811322717.92176
Perimeter
516504084
Area
16673529299292441
Diagonal
182611770.15347
Surface area
100041175795754646
Volume
2.1529864944446E+24
Space diagonal
223652828.95121
Perimeter
387378063
Area
7.2198499719657E+15
Altitude
111826414.4756
Surface area
7.2198499719657E+15
Volume
2.537318916708E+23
Height
60870590.051158