18181641 is an odd 8-digits composite number following 18181640
and preceding 18181642 . In scientific notation, it is written as 1.8181641 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12121092 positive integers (up to 18181641) that are relatively prime to 18181641.
18181641 has 4 divisors, whose sum is 24242192
The reverse of 18181641 is 14618181
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million one hundred eighty-one thousand six hundred forty-one
Scientific notation
1.8181641 × 10^7
Engineering notation
1.8181641 × 10^6
Prime Factorization
3 × 6060547
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18181641
Product of the distinct prime numbers
The prime factorization of 18181641 is 3 × 6060547.
Since it has a total of 2 prime factors.
1 , 6 , 62 , 59 , 716 , 641 , 9150 , 1400 , 80315 , 19631 , 282193 , 534015 , 7278388 , 4939741 , 76129870 , 25627400 , 728706124 , 698270477 , 5275879204 , 3126943632
n×2
36363282
n×3
54544923
n×4
72726564
n×5
90908205
n÷2
9090820.5
n÷3
6060547
n÷3
4545410.25
n÷5
3636328.2
n2
330572069452881
n3
6.0103426914193E+21
n4
1.0927789310236E+29
n5
1.9868514216235E+36
2 √n
4263.9935506518
3 √n
262.95273526925
4 √n
65.299261486266
5 √n
28.309136054533
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
-18181640
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 18181641 can be divided by 4 positive divisors.
The sum of these divisors (counting 18181641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101010110111000001001
3
Ternary
1021012201112010
4
Quaternary
1011112320021
5
Quinary
14123303031
6
Senary
1445410133
8
Octal
105267011
10
Decimal
18181641
12
Duodecimal
6109949
16
Hexadecimal
1156e09
20
Vigesimal
5dce21
36
Base36
atp1l
md5
b5e17bf95598f1d0e06e3fa72886548a
sha1
9ac6d7173f2c80e8830499069d0b51ef67ab1c1e
sha256
de6a3dc0c972413d19a63fc79fabcb73d3d884578d3c22d705a172812f463b73
sha512
e999d7e86cc8f1212c73c22bd9abf58d1b35347ba85d5cbf28b594c1217b02fcce274809f414804dc9e7d3cdb3815dd23677f907be9920f6811cd86ea8537455
ripemd-160
a3d1cdf2482e0e1a908c2545dc9dd86e766ed22d
Diameter
36363282
Circumference
114238619.59161
Area
1.0385227848751E+15
Volume
2.5176064593227E+22
Surface area
4.1540911395006E+15
Circumference
114238619.59161
Perimeter
72726564
Area
330572069452881
Diagonal
25712723.288399
Surface area
1983432416717286
Volume
6.0103426914193E+21
Space diagonal
31491525.976977
Perimeter
54544923
Area
1.4314190496389E+14
Altitude
15745762.988489
Surface area
1.4314190496389E+14
Volume
7.083256790596E+20
Height
8570907.7627996