129890 is an even 6-digits composite number following 129889
and preceding 129891 . In scientific notation, it is written as 1.29890 × 10^5.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 50160 positive integers (up to 129890) that are relatively prime to 129890.
129890 has 16 divisors, whose sum is 241920
The reverse of 129890 is 098921
Previous prime number is 31
Is Prime? no
Number parity even
Number length 6
Sum of Digits 29
Digital Root 2
Name
one hundred twenty-nine thousand eight hundred ninety
Scientific notation
1.29890 × 10^5
Engineering notation
1.29890 × 10^3
Prime Factorization
2 × 5 × 31 × 419
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129890
Product of the distinct prime numbers
The prime factorization of 129890 is 2 × 5 × 31 × 419.
Since it has a total of 4 prime factors.
6 , 4 , 44 , 11 , 209 , 807 , 471 , 9265 , 11677 , 36526 , 926845 , 703251 , 5357932 , 8898512 , 72115279 , 19662335 , 885900961 , 831215174 , 3695998056 , 5875575610
n×2
259780
n×3
389670
n×4
519560
n×5
649450
n÷2
64945
n÷3
43296.666666667
n÷3
32472.5
n÷5
25978
n2
16871412100
n3
2191427717669000
n4
2.8464454624803E+20
n5
3.6972480112156E+25
2 √n
360.40255271016
3 √n
50.643678013685
4 √n
18.984271192494
5 √n
10.536955437676
1 , 2 , 5 , 10 , 31 , 62 , 155 , 310 , 419 , 838 , 2095 , 4190 , 12989 , 25978 , 64945 , 129890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129890 can be divided by 16 positive divisors.
The sum of these divisors (counting 129890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101101100010
3
Ternary
20121011202
4
Quaternary
133231202
5
Quinary
13124030
6
Senary
2441202
8
Octal
375542
10
Decimal
129890
12
Duodecimal
63202
16
Hexadecimal
1fb62
20
Vigesimal
g4ea
36
Base36
2s82
md5
ae56a5fa62cb4921e07c8e29e40238d6
sha1
be53934d235005f40138267212a8f5ec10dfc336
sha256
2084bb3c8528df47c19524db4d61060d61a88ac519c8c314d0d3d98553a40c93
sha512
ef11ee76cf1ed1b227c09acd35e5196687b47f2df86a3164df98799376a9bef7c9dbe205255731ed1f25d7b2973111158b43493f7145691ddc6911b129eb175b
ripemd-160
d9037fdde519b742b17f95eb10a481d2c2eb7a52
Diameter
259780
Circumference
816122.93954956
Area
53003104309.046
Volume
9.1794309582693E+15
Surface area
212012417236.18
Circumference
816122.93954956
Perimeter
519560
Area
16871412100
Diagonal
183692.19961664
Surface area
101228472600
Volume
2191427717669000
Space diagonal
224976.07939512
Perimeter
389670
Area
7305535738.1581
Altitude
112488.03969756
Surface area
7305535738.1581
Volume
2.5826223327398E+14
Height
61230.733205547