128972647 is an odd 9-digits prime number following 128972646
and preceding 128972648 . In scientific notation, it is written as 1.28972647 × 10^8.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 128972646 positive integers (up to 128972647) that are relatively prime to 128972647.
128972647 has 2 divisors, whose sum is 128972648
The reverse of 128972647 is 746279821
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 46 Digital Root 1
Name
one hundred twenty-eight million nine hundred seventy-two thousand six hundred forty-seven
Scientific notation
1.28972647 × 10^8
Engineering notation
1.28972647 × 10^6
Prime Factorization
128972647
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
128972647 Product of the distinct prime numbers
The prime factorization of 128972647 is 128972647.
Since it has a total of 1 prime factors.
6 , 5 , 90 , 72 , 834 , 468 , 1828 , 3129 , 85246 , 11155 , 220341 , 82229 , 8868904 , 8284097 , 55816759 , 34698572 , 427336295 , 393346514 , 6146673219 , 4350241874
n×2
257945294
n×3
386917941
n×4
515890588
n×5
644863235
n÷2
64486323.5
n÷3
42990882.333333
n÷3
32243161.75
n÷5
25794529.4
n2
16633943674186609
n3
2.1453237457088E+24
n4
2.7668808215601E+32
n5
3.5685194349014E+40
2 √n11356.61247908
3 √n505.24171939621
4 √n106.56740814658
5 √n41.888954658885
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
128972648 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64486324 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11356.612523107 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999844928 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128972647 can be divided by 2 positive divisors.
The sum of these divisors (counting 128972647) is 128972648, the average is 64486324.
Base
System
Value
2
Binary
111101011111111011101100111
3
Ternary
22222200111012201
4
Quaternary
13223333131213
5
Quinary
231004111042
6
Senary
20444155331
8
Octal
753773547
10
Decimal
128972647
12
Duodecimal
37238b47
16
Hexadecimal
7aff767
20
Vigesimal
2061bc7
36
Base36
24sbxj
md5
84e85f28f1f2f071166e66a9a3419692
sha1
8ffd55e91a70c7fc149ca7ca3f45b56155c05828
sha256
9af04822ee7d0c4a4dd354639d1893ae24dbfb4b99767d27fa53bd9caa83bb3a
sha512
642e54ee9271fd88df9dd741ff72522bd0eb572c1b578934ab90029aaccaff9c565a16a4e28d758717ac479262ef2b21897e07466062af0432201d083d3b0000
ripemd-160
59a2a705f42e4183363fa266e0e4f1d1e703ae04
Diameter
257945294
Circumference
810359040.65846
Area
5.2257075247051E+16
Volume
8.9863110921205E+24
Surface area
2.090283009882E+17
Circumference
810359040.65846
Perimeter
515890588
Area
16633943674186609
Diagonal
182394866.56256
Surface area
99803662045119654
Volume
2.1453237457088E+24
Space diagonal
223387177.39065
Perimeter
386917941
Area
7.2027088934825E+15
Altitude
111693588.69532
Surface area
7.2027088934825E+15
Volume
2.5282882807186E+23
Height
60798288.854186