129128897 is an odd 9-digits composite number following 129128896
and preceding 129128898 . In scientific notation, it is written as 1.29128897 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 125742240 positive integers (up to 129128897) that are relatively prime to 129128897.
129128897 has 4 divisors, whose sum is 129157056
The reverse of 129128897 is 798821921
Previous prime number is 5767
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred twenty-nine million one hundred twenty-eight thousand eight hundred ninety-seven
Scientific notation
1.29128897 × 10^8
Engineering notation
1.29128897 × 10^6
Prime Factorization
5767 × 22391
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129128897
Product of the distinct prime numbers
The prime factorization of 129128897 is 5767 × 22391.
Since it has a total of 2 prime factors.
2 , 2 , 35 , 28 , 69 , 262 , 433 , 4116 , 72287 , 4747 , 820966 , 278964 , 3246251 , 3772648 , 27298522 , 48734108 , 510194285 , 959073164 , 7387073807 , 2488674538
n×2
258257794
n×3
387386691
n×4
516515588
n×5
645644485
n÷2
64564448.5
n÷3
43042965.666667
n÷3
32282224.25
n÷5
25825779.4
n2
16674272040436609
n3
2.1531303568595E+24
n4
2.7803134807849E+32
n5
3.5901881308798E+40
2 √n
11363.489648871
3 √n
505.44567003168
4 √n
106.59967002234
5 √n
41.899099414148
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
-129128896
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 129128897 can be divided by 4 positive divisors.
The sum of these divisors (counting 129128897) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100101100111000001
3
Ternary
22222222102112202
4
Quaternary
13230211213001
5
Quinary
231024111042
6
Senary
20451402545
8
Octal
754454701
10
Decimal
129128897
12
Duodecimal
372b3455
16
Hexadecimal
7b259c1
20
Vigesimal
207124h
36
Base36
24voht
md5
0b8ec431b85f545534a3edfa950139fc
sha1
923c0135724b1cd9a26e4e0a666dbe8c1b76b5bc
sha256
962453561a53a78514fb83214a725ee72a8c2b8ce4c0c6ec27b535b29904af1b
sha512
22f943a35036df8e208a488b3bf793e7abee0f05ae7dd6af4ea97989737779cc7582adb2eb7b0dc0ef8c5c92621fdadde8ba14b4326e3418271acffffe251813
ripemd-160
0d33e1702959eaf1c26e1eed5ff83047e7b5218a
Diameter
258257794
Circumference
811340788.36271
Area
5.2383770546193E+16
Volume
9.0190113484414E+24
Surface area
2.0953508218477E+17
Circumference
811340788.36271
Perimeter
516515588
Area
16674272040436609
Diagonal
182615837.43168
Surface area
100045632242619654
Volume
2.1531303568595E+24
Space diagonal
223657810.32933
Perimeter
387386691
Area
7.2201715883153E+15
Altitude
111828905.16466
Surface area
7.2201715883153E+15
Volume
2.53748846019E+23
Height
60871945.810559