18016721 is an odd 8-digits prime number following 18016720
and preceding 18016722 . In scientific notation, it is written as 1.8016721 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 18016720 positive integers (up to 18016721) that are relatively prime to 18016721.
18016721 has 2 divisors, whose sum is 18016722
The reverse of 18016721 is 12761081
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighteen million sixteen thousand seven hundred twenty-one
Scientific notation
1.8016721 × 10^7
Engineering notation
1.8016721 × 10^6
Prime Factorization
18016721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18016721
Product of the distinct prime numbers
The prime factorization of 18016721 is 18016721.
Since it has a total of 1 prime factors.
1 , 2 , 69 , 54 , 83 , 379 , 3967 , 975 , 58119 , 61130 , 555075 , 334693 , 827951 , 6351607 , 26576188 , 38154780 , 9379866 , 780110901 , 8447094105 , 8163513926
n×2
36033442
n×3
54050163
n×4
72066884
n×5
90083605
n÷2
9008360.5
n÷3
6005573.6666667
n÷3
4504180.25
n÷5
3603344.2
n2
324602235591841
n3
5.8482679146345E+21
n4
1.0536661135122E+29
n5
1.8983608394304E+36
2 √n
4244.6108184379
3 √n
262.15526507761
4 √n
65.1506778049
5 √n
28.25759202742
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18016722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9008361
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4244.6109362343
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999888992
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18016721 can be divided by 2 positive divisors.
The sum of these divisors (counting 18016721) is 18016722, the average is 9008361.
Base
System
Value
2
Binary
1000100101110100111010001
3
Ternary
1020220100021222
4
Quaternary
1010232213101
5
Quinary
14103013341
6
Senary
1442054425
8
Octal
104564721
10
Decimal
18016721
12
Duodecimal
604a415
16
Hexadecimal
112e9d1
20
Vigesimal
5cc1g1
36
Base36
aq5sh
md5
a4118a8ab79f8e27277a8a7d45a41389
sha1
6e55b85e7b4710f15e4c66cc146e52cfb64c59ec
sha256
57567bfc4c2f6d1fa322c0b1e4a60407d20f0521d55b9e6a3571df53b2809e26
sha512
e0e0fa9b798f8b134ac46c15744eef6867523592ed9e330ec55a1bc203447a4a219ea17d325dc651cbf1b9415022f8b47eb19640f40fa79955c362c202c29ab6
ripemd-160
76521f0eed84646ea5a6cb24af9703cfd00095d1
Diameter
36033442
Circumference
113202396.67075
Area
1.0197679986742E+15
Volume
2.4497167355787E+22
Surface area
4.0790719946966E+15
Circumference
113202396.67075
Perimeter
72066884
Area
324602235591841
Diagonal
25479491.187692
Surface area
1947613413551046
Volume
5.8482679146345E+21
Space diagonal
31205876.157793
Perimeter
54050163
Area
1.4055689107388E+14
Altitude
15602938.078897
Surface area
1.4055689107388E+14
Volume
6.8922498343896E+20
Height
8493163.7292307