129815181 is an odd 9-digits composite number following 129815180
and preceding 129815182 . In scientific notation, it is written as 1.29815181 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 86484096 positive integers (up to 129815181) that are relatively prime to 129815181.
129815181 has 12 divisors, whose sum is 187639452
The reverse of 129815181 is 181518921
Previous prime number is 1777
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
one hundred twenty-nine million eight hundred fifteen thousand one hundred eighty-one
Scientific notation
1.29815181 × 10^8
Engineering notation
1.29815181 × 10^6
Prime Factorization
3 × 3 × 1777 × 8117
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
43271727
Product of the distinct prime numbers
The prime factorization of 129815181 is 3 × 3 × 1777 × 8117.
Since it has a total of 4 prime factors.
5 , 4 , 31 , 84 , 95 , 310 , 9223 , 1389 , 33515 , 71849 , 377303 , 493168 , 1721943 , 1508789 , 99142337 , 35668889 , 570349401 , 630889317 , 8500594731 , 6114363322
n×2
259630362
n×3
389445543
n×4
519260724
n×5
649075905
n÷2
64907590.5
n÷3
43271727
n÷3
32453795.25
n÷5
25963036.2
n2
16851981218062761
n3
2.1876429920314E+24
n4
2.8398927097394E+32
n5
3.686611861354E+40
2 √n
11393.646519003
3 √n
506.33952253144
4 √n
106.74102547289
5 √n
41.943541436312
1 , 3 , 9 , 1777 , 5331 , 8117 , 15993 , 24351 , 73053 , 14423909 , 43271727 , 129815181
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129815180
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129815181 can be divided by 12 positive divisors.
The sum of these divisors (counting 129815181) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101111001101001010001101
3
Ternary
100001021021221200
4
Quaternary
13233031022031
5
Quinary
231213041211
6
Senary
20514220113
8
Octal
757151215
10
Decimal
129815181
12
Duodecimal
37584639
16
Hexadecimal
7bcd28d
20
Vigesimal
20b6hj1
36
Base36
25ae19
md5
96a1c9e4f8db43c4582fb09892daee08
sha1
99d787890b8fb155a5e47f16309c29b4da758a0e
sha256
bf0cf888bfb20253a9c23d86f3cf20c74e37aab6ccf792e62458732fbc13ccf1
sha512
ebd89b6ba63b11a8274c8f72a8531d04c3c223e9614e94da07ec650fcd54ca23b21699a7fe286c36b9b9b5af5a0453831b1a4bd107ccc71a64c99b7db578b759
ripemd-160
73c47e28c7ec3557216723d9d9070de591b75975
Diameter
259630362
Circumference
815652837.90806
Area
5.2942060393099E+16
Volume
9.1635775365908E+24
Surface area
2.117682415724E+17
Circumference
815652837.90806
Perimeter
519260724
Area
16851981218062761
Diagonal
183586389.57212
Surface area
101111887308376566
Volume
2.1876429920314E+24
Space diagonal
224846489.08575
Perimeter
389445543
Area
7.2971219194703E+15
Altitude
112423244.54287
Surface area
7.2971219194703E+15
Volume
2.5781619908011E+23
Height
61195463.190706