18129621 is an odd 8-digits composite number following 18129620
and preceding 18129622 . In scientific notation, it is written as 1.8129621 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11997920 positive integers (up to 18129621) that are relatively prime to 18129621.
18129621 has 8 divisors, whose sum is 24349824
The reverse of 18129621 is 12692181
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million one hundred twenty-nine thousand six hundred twenty-one
Scientific notation
1.8129621 × 10^7
Engineering notation
1.8129621 × 10^6
Prime Factorization
3 × 137 × 44111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18129621
Product of the distinct prime numbers
The prime factorization of 18129621 is 3 × 137 × 44111.
Since it has a total of 3 prime factors.
8 , 5 , 48 , 51 , 808 , 140 , 2751 , 2816 , 78104 , 10817 , 132964 , 147795 , 9268110 , 7983111 , 67991038 , 83639872 , 472119539 , 954889874 , 5692580723 , 5607564630
n×2
36259242
n×3
54388863
n×4
72518484
n×5
90648105
n÷2
9064810.5
n÷3
6043207
n÷3
4532405.25
n÷5
3625924.2
n2
328683157603641
n3
5.9589010764373E+21
n4
1.080326180923E+29
n5
1.9585904216511E+36
2 √n
4257.8892658217
3 √n
262.70171524921
4 √n
65.252503904615
5 √n
28.292918271743
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
-18129620
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 18129621 can be divided by 8 positive divisors.
The sum of these divisors (counting 18129621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101001010001011010101
3
Ternary
1021010002011110
4
Quaternary
1011022023111
5
Quinary
14120121441
6
Senary
1444325233
8
Octal
105121325
10
Decimal
18129621
12
Duodecimal
60a3819
16
Hexadecimal
114a2d5
20
Vigesimal
5d6411
36
Base36
askwl
md5
567b624e9d94b580cd8b712d3fa30165
sha1
f1d36d69cb44f6ba798b9862dc7c36702092a6db
sha256
ed74fc6dc788fa03b2bae68afbf9203f11a674fb3d4dcd4f48a3239fc1369230
sha512
0f58602fdc66735d8d5f1e6b4f3443ecfffb1b7de8094b0b61824db9c1cf0cb0959acb4bf5a71d430e44da78491bd214d8d1d9c4e9dfc9d7e6a613388acd33f2
ripemd-160
a962255f33ab4550fdd2211493fd61af9896f0f2
Diameter
36259242
Circumference
113911768.29193
Area
1.0325885932863E+15
Volume
2.4960586460272E+22
Surface area
4.1303543731452E+15
Circumference
113911768.29193
Perimeter
72518484
Area
328683157603641
Diagonal
25639155.898884
Surface area
1972098945621846
Volume
5.9589010764373E+21
Space diagonal
31401424.693968
Perimeter
54388863
Area
1.4232398214042E+14
Altitude
15700712.346984
Surface area
1.4232398214042E+14
Volume
7.0226322659477E+20
Height
8546385.299628