18661641 is an odd 8-digits composite number following 18661640
and preceding 18661642 . In scientific notation, it is written as 1.8661641 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors.
There are 12223384 positive integers (up to 18661641) that are relatively prime to 18661641.
18661641 has 12 divisors, whose sum is 25325232
The reverse of 18661641 is 14616681
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million six hundred sixty-one thousand six hundred forty-one
Scientific notation
1.8661641 × 10^7
Engineering notation
1.8661641 × 10^6
Prime Factorization
3 × 59 × 59 × 1787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
316299
Product of the distinct prime numbers
The prime factorization of 18661641 is 3 × 59 × 59 × 1787.
Since it has a total of 4 prime factors.
3 , 2 , 98 , 7 , 858 , 203 , 6716 , 3501 , 86934 , 78470 , 732480 , 466060 , 2082496 , 8729846 , 78869244 , 67266823 , 850815881 , 941946862 , 7989147382 , 4432309236
n×2
37323282
n×3
55984923
n×4
74646564
n×5
93308205
n÷2
9330820.5
n÷3
6220547
n÷3
4665410.25
n÷5
3732328.2
n2
348256844812881
n3
6.4990442136907E+21
n4
1.2128282995902E+29
n5
2.2633366321593E+36
2 √n
4319.9121518846
3 √n
265.24667194298
4 √n
65.726038613966
5 √n
28.457055841952
1 , 3 , 59 , 177 , 1787 , 3481 , 5361 , 10443 , 105433 , 316299 , 6220547 , 18661641
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
-18661640
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 18661641 can be divided by 12 positive divisors.
The sum of these divisors (counting 18661641) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000111001100000100001001
3
Ternary
1022010002221220
4
Quaternary
1013030010021
5
Quinary
14234133031
6
Senary
1503552253
8
Octal
107140411
10
Decimal
18661641
12
Duodecimal
62bb689
16
Hexadecimal
11cc109
20
Vigesimal
5gce21
36
Base36
b3zex
md5
86bb6be19362f90ebb94f7c5d033d808
sha1
f87e4a08070665fc656a4b9421029790ca442e85
sha256
a8c06b133510539a0147ce1f11da1be47f88d3399eb16f1995ca4c8e56c79335
sha512
25409eda3d012c14f4fe821660a10026fa4e814f24c9286d74846c48fc98e31f7b5487ca17f3e010beff4b3d99406e463fccb959e930c19c0bb99f47b4c4e26d
ripemd-160
becebe9608db97253b95dcb1eaee5f968e99bbf0
Diameter
37323282
Circumference
117254548.53906
Area
1.0940811452265E+15
Volume
2.7223132742781E+22
Surface area
4.376324580906E+15
Circumference
117254548.53906
Perimeter
74646564
Area
348256844812881
Diagonal
26391545.798338
Surface area
2089541068877286
Volume
6.4990442136907E+21
Space diagonal
32322910.36461
Perimeter
55984923
Area
1.5079963732488E+14
Altitude
16161455.182305
Surface area
1.5079963732488E+14
Volume
7.6591970578865E+20
Height
8797181.9327793