127987 is an odd 6-digits composite number following 127986
and preceding 127988 . In scientific notation, it is written as 1.27987 × 10^5.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 126880 positive integers (up to 127987) that are relatively prime to 127987.
127987 has 4 divisors, whose sum is 129096
The reverse of 127987 is 789721
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-seven thousand nine hundred eighty-seven
Scientific notation
1.27987 × 10^5
Engineering notation
1.27987 × 10^3
Prime Factorization
131 × 977
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
127987
Product of the distinct prime numbers
The prime factorization of 127987 is 131 × 977.
Since it has a total of 2 prime factors.
2 , 2 , 12 , 27 , 797 , 672 , 7740 , 6514 , 26528 , 54847 , 238438 , 373698 , 3655706 , 9353443 , 87200792 , 49750278 , 591737791 , 756586556 , 1447758529 , 1267222525
n×2
255974
n×3
383961
n×4
511948
n×5
639935
n÷2
63993.5
n÷3
42662.333333333
n÷3
31996.75
n÷5
25597.4
n2
16380672169
n3
2096513088893803
n4
2.6832642070825E+20
n5
3.4342293607187E+25
2 √n
357.75270788633
3 √n
50.395135794943
4 √n
18.91435190236
5 √n
10.505897803561
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
-127986
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 127987 can be divided by 4 positive divisors.
The sum of these divisors (counting 127987) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111001111110011
3
Ternary
20111120021
4
Quaternary
133033303
5
Quinary
13043422
6
Senary
2424311
8
Octal
371763
10
Decimal
127987
12
Duodecimal
62097
16
Hexadecimal
1f3f3
20
Vigesimal
fjj7
36
Base36
2qr7
md5
3630d13a906eeb62571ac860127ac827
sha1
3b31b4cce87d06b85a676b36d6f6d484ada282ad
sha256
e48f8222cb08869fae983ecf3f4ef19f15d129fba8c376b460900b85ceed740a
sha512
5509c1fe688d3d8f87c1b69abec8acb0e64150f5a1ef4d4a40924caa9e5395f5dbd24e13c518ebb30b706a9b7daba72ce13568cf383fc7a903882a735d45a899
ripemd-160
874f10f87b13de05f5a0ae780da9a770136c6549
Diameter
255974
Circumference
804166.03790999
Area
51461399346.993
Volume
8.7818534909648E+15
Surface area
205845597387.97
Circumference
804166.03790999
Perimeter
511948
Area
16380672169
Diagonal
181000.95120745
Surface area
98284033014
Volume
2096513088893803
Space diagonal
221679.98670832
Perimeter
383961
Area
7093039114.7094
Altitude
110839.99335416
Surface area
7093039114.7094
Volume
2.4707643700053E+14
Height
60333.650402482