129887 is an odd 6-digits prime number following 129886
and preceding 129888 . In scientific notation, it is written as 1.29887 × 10^5.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 129886 positive integers (up to 129887) that are relatively prime to 129887.
129887 has 2 divisors, whose sum is 129888
The reverse of 129887 is 788921
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-nine thousand eight hundred eighty-seven
Scientific notation
1.29887 × 10^5
Engineering notation
1.29887 × 10^3
Prime Factorization
129887
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
129887
Product of the distinct prime numbers
The prime factorization of 129887 is 129887.
Since it has a total of 1 prime factors.
7 , 8 , 5 , 88 , 850 , 233 , 8496 , 9054 , 66702 , 63823 , 1426 , 284195 , 7569560 , 1361596 , 61092394 , 23683083 , 196552735 , 434787972 , 7768906347 , 2499532760
n×2
259774
n×3
389661
n×4
519548
n×5
649435
n÷2
64943.5
n÷3
43295.666666667
n÷3
32471.75
n÷5
25977.4
n2
16870632769
n3
2191275878467103
n4
2.8461825002646E+20
n5
3.6968210641186E+25
2 √n
360.39839067343
3 √n
50.643288114017
4 √n
18.98416157415
5 √n
10.53690676394
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
129888
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
64944
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
360.39977802435
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999846021187
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129887 can be divided by 2 positive divisors.
The sum of these divisors (counting 129887) is 129888, the average is 64944.
Base
System
Value
2
Binary
11111101101011111
3
Ternary
20121011122
4
Quaternary
133231133
5
Quinary
13124022
6
Senary
2441155
8
Octal
375537
10
Decimal
129887
12
Duodecimal
631bb
16
Hexadecimal
1fb5f
20
Vigesimal
g4e7
36
Base36
2s7z
md5
200b721fa2752cdcc89a64f0d9163603
sha1
e9163e7a8a49f9d2bc8061392e8b932831be3728
sha256
1210bf154b9c7cc6aa0fde421e42cc2aebf10f21f5b305b0fc60b96d1a400519
sha512
f2657192f7f446109f0e09921d7cbf38a678bdd61c7b6f13c25622bbb4a6cdfce8fcb996ee0406782a367d40fbb1233dea29e5beff1935901a6afaa15517a6c9
ripemd-160
75c9e6c68c54babd8308028fd49c4499aad2c581
Diameter
259774
Circumference
816104.08999363
Area
53000655968.502
Volume
9.1787949357077E+15
Surface area
212002623874.01
Circumference
816104.08999363
Perimeter
519548
Area
16870632769
Diagonal
183687.95697595
Surface area
101223796614
Volume
2191275878467103
Space diagonal
224970.8832427
Perimeter
389661
Area
7305198277.9361
Altitude
112485.44162135
Surface area
7305198277.9361
Volume
2.5824433885243E+14
Height
61229.318991985