18442561 is an odd 8-digits composite number following 18442560
and preceding 18442562 . In scientific notation, it is written as 1.8442561 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 18414000 positive integers (up to 18442561) that are relatively prime to 18442561.
18442561 has 4 divisors, whose sum is 18471124
The reverse of 18442561 is 16524481
Previous prime number is 661
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million four hundred forty-two thousand five hundred sixty-one
Scientific notation
1.8442561 × 10^7
Engineering notation
1.8442561 × 10^6
Prime Factorization
661 × 27901
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18442561
Product of the distinct prime numbers
The prime factorization of 18442561 is 661 × 27901.
Since it has a total of 2 prime factors.
5 , 3 , 47 , 9 , 183 , 865 , 9425 , 5777 , 57300 , 21224 , 767943 , 492116 , 2186353 , 3685004 , 29400565 , 6620343 , 626535899 , 550201197 , 6291998072 , 1762089883
n×2
36885122
n×3
55327683
n×4
73770244
n×5
92212805
n÷2
9221280.5
n÷3
6147520.3333333
n÷3
4610640.25
n÷5
3688512.2
n2
340128056238721
n3
6.272832424994E+21
n4
1.1568709464073E+29
n5
2.1335662998244E+36
2 √n
4294.4802945176
3 √n
264.20462116685
4 √n
65.532284368223
5 √n
28.389925032831
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
-18442560
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 18442561 can be divided by 4 positive divisors.
The sum of these divisors (counting 18442561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110010110100101000001
3
Ternary
1021200222102211
4
Quaternary
1012112211001
5
Quinary
14210130221
6
Senary
1455142121
8
Octal
106264501
10
Decimal
18442561
12
Duodecimal
6214941
16
Hexadecimal
1196941
20
Vigesimal
5f5681
36
Base36
azadd
md5
4e7d6145737f97e408cd836249d4fea4
sha1
40908998cdda23e874e47599a7b91b4b2a1aefbd
sha256
9130495198b6cc3c610942cd5af5e9c0ec20731133275736736e77c44c507f24
sha512
5bc2c624325467b985656e5e6a94617a48b3c11fde99941a9a43c480eabcdc3b8e49406a1c2baddd80e5132ebd561cc5dfad7269ebe79c46f706a459857b309e
ripemd-160
6797ea68fa018d3ff6bee3ffae74558d6ce78390
Diameter
36885122
Circumference
115878028.30196
Area
1.0685438027593E+15
Volume
2.6275579018082E+22
Surface area
4.2741752110374E+15
Circumference
115878028.30196
Perimeter
73770244
Area
340128056238721
Diagonal
26081719.891093
Surface area
2040768337432326
Volume
6.272832424994E+21
Space diagonal
31943452.673688
Perimeter
55327683
Area
1.4727976862128E+14
Altitude
15971726.336844
Surface area
1.4727976862128E+14
Volume
7.3926039082669E+20
Height
8693906.6303644