18219998 is an even 8-digits composite number following 18219997
and preceding 18219999 . In scientific notation, it is written as 1.8219998 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 9109998 positive integers (up to 18219998) that are relatively prime to 18219998.
18219998 has 4 divisors, whose sum is 27330000
The reverse of 18219998 is 89991281
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million two hundred nineteen thousand nine hundred ninety-eight
Scientific notation
1.8219998 × 10^7
Engineering notation
1.8219998 × 10^6
Prime Factorization
2 × 9109999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18219998
Product of the distinct prime numbers
The prime factorization of 18219998 is 2 × 9109999.
Since it has a total of 2 prime factors.
3 , 5 , 7 , 41 , 913 , 400 , 4873 , 3925 , 74530 , 8098 , 655381 , 719409 , 437723 , 7867561 , 41042264 , 21041079 , 298704355 , 112807993 , 1001317378 , 9476668933
n×2
36439996
n×3
54659994
n×4
72879992
n×5
91099990
n÷2
9109999
n÷3
6073332.6666667
n÷3
4554999.5
n÷5
3643999.6
n2
331968327120004
n3
6.0484622561898E+21
n4
1.1020297021085E+29
n5
2.0078978968358E+36
2 √n
4268.4889598077
3 √n
263.13751862023
4 √n
65.333674011245
5 √n
28.321070493004
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
-18219997
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 18219998 can be divided by 4 positive divisors.
The sum of these divisors (counting 18219998) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101100000001111011110
3
Ternary
1021021200010202
4
Quaternary
1011200033132
5
Quinary
14131014443
6
Senary
1450303502
8
Octal
105401736
10
Decimal
18219998
12
Duodecimal
6127b92
16
Hexadecimal
11603de
20
Vigesimal
5dh9ji
36
Base36
auin2
md5
2613ee7deda349a8861f4361e05fb0ed
sha1
3b84cb38d3a5449c8a4b2e72c2a452b856d09465
sha256
eb2a91d588434a3483271befe5cd08a3acf433871f89e865ef3098ebb768fcb4
sha512
7ff74d1784441e8cb917d3bd85ad189b326302813a66c9369bbcaa55d14cee1b36cbf07705dd38ed6466093129cc5c7801a24787bf40f64b39187d305add48b2
ripemd-160
34f8c8cd17bae487abca3da394da52544490a208
Diameter
36439996
Circumference
114479623.73044
Area
1.0429092577047E+15
Volume
2.5335739452748E+22
Surface area
4.1716370308188E+15
Circumference
114479623.73044
Perimeter
72879992
Area
331968327120004
Diagonal
25766968.278011
Surface area
1991809962720024
Volume
6.0484622561898E+21
Space diagonal
31557962.249803
Perimeter
54659994
Area
1.4374650226887E+14
Altitude
15778981.124902
Surface area
1.4374650226887E+14
Volume
7.1281811285045E+20
Height
8588989.4260036