18442081 is an odd 8-digits composite number following 18442080
and preceding 18442082 . In scientific notation, it is written as 1.8442081 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 10 positive divisors.
There are 15805440 positive integers (up to 18442081) that are relatively prime to 18442081.
18442081 has 10 divisors, whose sum is 21517282
The reverse of 18442081 is 18024481
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million four hundred forty-two thousand eighty-one
Scientific notation
1.8442081 × 10^7
Engineering notation
1.8442081 × 10^6
Prime Factorization
7 × 7 × 49 × 7681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2634583
Product of the distinct prime numbers
The prime factorization of 18442081 is 7 × 7 × 49 × 7681.
Since it has a total of 4 prime factors.
3 , 4 , 57 , 66 , 811 , 833 , 2724 , 5807 , 66312 , 328 , 805059 , 323584 , 854828 , 7069656 , 6489712 , 57160267 , 24161509 , 116177789 , 4691782624 , 1692400871
n×2
36884162
n×3
55326243
n×4
73768324
n×5
92210405
n÷2
9221040.5
n÷3
6147360.3333333
n÷3
4610520.25
n÷5
3688416.2
n2
340110351610561
n3
6.2723426533404E+21
n4
1.1567505127266E+29
n5
2.1332886652495E+36
2 √n
4294.4244084627
3 √n
264.20232901739
4 √n
65.531857965898
5 √n
28.389777251773
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18442080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18442081 can be divided by 10 positive divisors.
The sum of these divisors (counting 18442081) is 1, the average is 0.1.
Base
System
Value
2
Binary
1000110010110011101100001
3
Ternary
1021200221210001
4
Quaternary
1012112131201
5
Quinary
14210121311
6
Senary
1455140001
8
Octal
106263541
10
Decimal
18442081
12
Duodecimal
6214601
16
Hexadecimal
1196761
20
Vigesimal
5f5541
36
Base36
aza01
md5
d8f1255ee447fc1dd07efe3b430c4845
sha1
f90ee1661cc5ef9aad66b574cc7bbfa672b5ff92
sha256
f5d6ccc02abec2004e8d6d69892a4d9f1f1ef56f3ff5e5b14c7d7985a5917ad1
sha512
c18f1e7d473f379bb481f1e607e0f087a8360ce6c38cc77bb185da40c6f0134dab079afeb391ce45269f002492cf915a5609b08185ba89a91280a8852de05ba2
ripemd-160
6775be2ff3f9aeb61f9abacd6e07dcc1af2b22d1
Diameter
36884162
Circumference
115875012.37302
Area
1.0684881820296E+15
Volume
2.6273527467376E+22
Surface area
4.2739527281183E+15
Circumference
115875012.37302
Perimeter
73768324
Area
340110351610561
Diagonal
26081041.068583
Surface area
2040662109663366
Volume
6.2723426533404E+21
Space diagonal
31942621.289301
Perimeter
55326243
Area
1.472721022924E+14
Altitude
15971310.64465
Surface area
1.472721022924E+14
Volume
7.3920267068378E+20
Height
8693680.3561944