18219997 is an odd 8-digits composite number following 18219996
and preceding 18219998 . In scientific notation, it is written as 1.8219997 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 17970336 positive integers (up to 18219997) that are relatively prime to 18219997.
18219997 has 4 divisors, whose sum is 18469660
The reverse of 18219997 is 79991281
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million two hundred nineteen thousand nine hundred ninety-seven
Scientific notation
1.8219997 × 10^7
Engineering notation
1.8219997 × 10^6
Prime Factorization
73 × 249589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18219997
Product of the distinct prime numbers
The prime factorization of 18219997 is 73 × 249589.
Since it has a total of 2 prime factors.
10 , 10 , 47 , 11 , 872 , 580 , 1527 , 9173 , 96086 , 91313 , 584074 , 86727 , 284276 , 3651876 , 46770910 , 52186442 , 532215884 , 30296521 , 5034991706 , 4379582226
n×2
36439994
n×3
54659991
n×4
72879988
n×5
91099985
n÷2
9109998.5
n÷3
6073332.3333333
n÷3
4554999.25
n÷5
3643999.4
n2
331968290680009
n3
6.0484612602849E+21
n4
1.1020294601701E+29
n5
2.007897345821E+36
2 √n
4268.4888426702
3 √n
263.13751380615
4 √n
65.33367311479
5 √n
28.321070182125
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
-18219996
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 18219997 can be divided by 4 positive divisors.
The sum of these divisors (counting 18219997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101100000001111011101
3
Ternary
1021021200010201
4
Quaternary
1011200033131
5
Quinary
14131014442
6
Senary
1450303501
8
Octal
105401735
10
Decimal
18219997
12
Duodecimal
6127b91
16
Hexadecimal
11603dd
20
Vigesimal
5dh9jh
36
Base36
auin1
md5
f999e1c25a90224dffb156b6265574ee
sha1
835c04ca80c185d487f3b4cd2c5639bd24b9ee0f
sha256
1364d3da4d145375952e91deebf10073c770622e80552cadc383f295d28fc458
sha512
7425c9948b6ca58e2252112390ac11f896395d2e26160accf026135cacd44ef993981512787877ad50539dffbb513a613b62c909ddd802fc988b386dc2b8659b
ripemd-160
9a964cdebc4471fe54a906c9366e9940268ace2b
Diameter
36439994
Circumference
114479617.44726
Area
1.0429091432251E+15
Volume
2.5335735281111E+22
Surface area
4.1716365729003E+15
Circumference
114479617.44726
Perimeter
72879988
Area
331968290680009
Diagonal
25766966.863797
Surface area
1991809744080054
Volume
6.0484612602849E+21
Space diagonal
31557960.517753
Perimeter
54659991
Area
1.4374648648989E+14
Altitude
15778980.258876
Surface area
1.4374648648989E+14
Volume
7.1281799548193E+20
Height
8588988.954599