128014987 is an odd 9-digits composite number following 128014986
and preceding 128014988 . In scientific notation, it is written as 1.28014987 × 10^8.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 121977768 positive integers (up to 128014987) that are relatively prime to 128014987.
128014987 has 8 divisors, whose sum is 134095104
The reverse of 128014987 is 789410821
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-eight million fourteen thousand nine hundred eighty-seven
Scientific notation
1.28014987 × 10^8
Engineering notation
1.28014987 × 10^6
Prime Factorization
23 × 263 × 21163
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128014987
Product of the distinct prime numbers
The prime factorization of 128014987 is 23 × 263 × 21163.
Since it has a total of 3 prime factors.
2 , 7 , 72 , 22 , 357 , 401 , 2410 , 9266 , 36929 , 76739 , 142493 , 699645 , 2909717 , 1983175 , 75412695 , 28167926 , 617272390 , 610059560 , 7600097895 , 5821228953
n×2
256029974
n×3
384044961
n×4
512059948
n×5
640074935
n÷2
64007493.5
n÷3
42671662.333333
n÷3
32003746.75
n÷5
25602997.4
n2
16387836896610169
n3
2.0978887272777E+24
n4
2.685611981499E+32
n5
3.4379858289864E+40
2 √n
11314.370817681
3 √n
503.98808839531
4 √n
106.36903129051
5 √n
41.826561495281
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
-128014986
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 128014987 can be divided by 8 positive divisors.
The sum of these divisors (counting 128014987) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000010101101010001011
3
Ternary
22220212211112211
4
Quaternary
13220111222023
5
Quinary
230232434422
6
Senary
20411445551
8
Octal
750255213
10
Decimal
128014987
12
Duodecimal
36a568b7
16
Hexadecimal
7a15a8b
20
Vigesimal
2001h97
36
Base36
247szv
md5
f9cfd426fadcb38d89673166c64a13b8
sha1
d9768a5e06aa5f64b7dfcaa99632b90ff7abd201
sha256
1ebf9d9dfbe3598268d8079a2eb579c04a3844f505118fbd376b9461db68b207
sha512
873b153ff47d694b8d0723586ed2085b107178f968d4d5fcacf87dccb53619273a6173f2f8889760fb86c2c4f75a4358b6f97ce883768bdfe744cb48e1fd7f2e
ripemd-160
15282f24ea477069ebfc737f50ec95f87cb696db
Diameter
256029974
Circumference
804341885.41719
Area
5.1483908002618E+16
Volume
8.7876157515525E+24
Surface area
2.0593563201047E+17
Circumference
804341885.41719
Perimeter
512059948
Area
16387836896610169
Diagonal
181040530.80242
Surface area
98327021379661014
Volume
2.0978887272777E+24
Space diagonal
221728461.61427
Perimeter
384044961
Area
7.0961415327702E+15
Altitude
110864230.80713
Surface area
7.0961415327702E+15
Volume
2.4723855753881E+23
Height
60346843.600805