128972643 is an odd 9-digits composite number following 128972642
and preceding 128972644 . In scientific notation, it is written as 1.28972643 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 84524328 positive integers (up to 128972643) that are relatively prime to 128972643.
128972643 has 8 divisors, whose sum is 174878400
The reverse of 128972643 is 346279821
Previous prime number is 59
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred twenty-eight million nine hundred seventy-two thousand six hundred forty-three
Scientific notation
1.28972643 × 10^8
Engineering notation
1.28972643 × 10^6
Prime Factorization
3 × 59 × 728659
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
128972643 Product of the distinct prime numbers
The prime factorization of 128972643 is 3 × 59 × 728659.
Since it has a total of 3 prime factors.
4 , 9 , 53 , 40 , 102 , 625 , 9578 , 3099 , 39118 , 15571 , 358147 , 440151 , 8804174 , 1000510 , 16147695 , 64821363 , 267216380 , 24369596 , 9122818119 , 1165329271
n×2
257945286
n×3
386917929
n×4
515890572
n×5
644863215
n÷2
64486321.5
n÷3
42990881
n÷3
32243160.75
n÷5
25794528.6
n2
16633942642405449
n3
2.1453235461014E+24
n4
2.7668804783083E+32
n5
3.5685188815253E+40
2 √n11356.612302971
3 √n505.24171417296
4 √n106.5674073203
5 √n41.888954399054
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
-128972642 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 128972643 can be divided by 8 positive divisors.
The sum of these divisors (counting 128972643) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101011111111011101100011
3
Ternary
22222200111012120
4
Quaternary
13223333131203
5
Quinary
231004111033
6
Senary
20444155323
8
Octal
753773543
10
Decimal
128972643
12
Duodecimal
37238b43
16
Hexadecimal
7aff763
20
Vigesimal
2061bc3
36
Base36
24sbxf
md5
04dede0b05f02ce6702e7185dc66ec82
sha1
41be327f4838d4d9f2f583470d0c3e0e62de4766
sha256
999280e98bbc9d532f02e03f23d2365325938b5de4f4cfb10646e9b9239143dc
sha512
2c1df31bd3f4f02d1867e485fb33011569022e3f88673ba31f3187dcae45aa90e4e76e9173decb06765669962a214bfd2c57a424c7ba17f88de42fdf311112f6
ripemd-160
de302fdc73ca23231ac2061db7243fe05ac6ecd3
Diameter
257945286
Circumference
810359015.52572
Area
5.2257072005615E+16
Volume
8.9863102560073E+24
Surface area
2.0902828802246E+17
Circumference
810359015.52572
Perimeter
515890572
Area
16633942642405449
Diagonal
182394860.9057
Surface area
99803655854432694
Volume
2.1453235461014E+24
Space diagonal
223387170.46244
Perimeter
386917929
Area
7.2027084467082E+15
Altitude
111693585.23122
Surface area
7.2027084467082E+15
Volume
2.5282880454792E+23
Height
60798286.968568