18497989 is an odd 8-digits composite number following 18497988
and preceding 18497990 . In scientific notation, it is written as 1.8497989 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 17364480 positive integers (up to 18497989) that are relatively prime to 18497989.
18497989 has 8 divisors, whose sum is 19637208
The reverse of 18497989 is 98979481
Previous prime number is 2381
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
eighteen million four hundred ninety-seven thousand nine hundred eighty-nine
Scientific notation
1.8497989 × 10^7
Engineering notation
1.8497989 × 10^6
Prime Factorization
17 × 2381 × 457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18497989
Product of the distinct prime numbers
The prime factorization of 18497989 is 17 × 2381 × 457.
Since it has a total of 3 prime factors.
6 , 6 , 73 , 17 , 499 , 486 , 2046 , 3939 , 27095 , 12212 , 201479 , 160302 , 4194852 , 2008223 , 25803668 , 85863882 , 44744018 , 805630711 , 9677659797 , 4680444250
n×2
36995978
n×3
55493967
n×4
73991956
n×5
92489945
n÷2
9248994.5
n÷3
6165996.3333333
n÷3
4624497.25
n÷5
3699597.8
n2
342175597044121
n3
6.3295604301906E+21
n4
1.170841392125E+29
n5
2.1658211192273E+36
2 √n
4300.9288531665
3 √n
264.46904010705
4 √n
65.581467299585
5 √n
28.406969394826
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18497988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18497989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18497989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110100100000111000101
3
Ternary
1021210210110201
4
Quaternary
1012210013011
5
Quinary
14213413424
6
Senary
1500250501
8
Octal
106440705
10
Decimal
18497989
12
Duodecimal
6240a31
16
Hexadecimal
11a41c5
20
Vigesimal
5fc4j9
36
Base36
b0h51
md5
354bc3934f76d2415e9a3af63431f7ca
sha1
75786d7e024930a4bb98128fe1ae51dc584634c2
sha256
c21edf3a5c5b661fb67cdaf675b7746db0021c7021c8c0d22905c635de9ae802
sha512
58a63416646769de9c44532322ac3e71f6e086e5389c20d5703015bb3f6be95f42c75c0da04c7daf394be7ce3a9df1cfd954dedcac26ef9880d198b6bb5e3765
ripemd-160
3c0d4cd15b99d63652f75f816a456958f3476df8
Diameter
36995978
Circumference
116226292.69717
Area
1.0749763419115E+15
Volume
2.6513200730586E+22
Surface area
4.299905367646E+15
Circumference
116226292.69717
Perimeter
73991956
Area
342175597044121
Diagonal
26160106.920428
Surface area
2053053582264726
Volume
6.3295604301906E+21
Space diagonal
32039456.78585
Perimeter
55493967
Area
1.4816637979766E+14
Altitude
16019728.392925
Surface area
1.4816637979766E+14
Volume
7.4594585035297E+20
Height
8720035.6401428