18989911 is an odd 8-digits composite number following 18989910
and preceding 18989912 . In scientific notation, it is written as 1.8989911 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 17868600 positive integers (up to 18989911) that are relatively prime to 18989911.
18989911 has 8 divisors, whose sum is 20124800
The reverse of 18989911 is 11998981
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million nine hundred eighty-nine thousand nine hundred eleven
Scientific notation
1.8989911 × 10^7
Engineering notation
1.8989911 × 10^6
Prime Factorization
19 × 151 × 6619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989911
Product of the distinct prime numbers
The prime factorization of 18989911 is 19 × 151 × 6619.
Since it has a total of 3 prime factors.
8 , 3 , 6 , 2 , 322 , 477 , 453 , 7507 , 437 , 88576 , 966782 , 754018 , 2733754 , 2673672 , 54550315 , 84010047 , 992084191 , 221906296 , 9507372570 , 5587742355
n×2
37979822
n×3
56969733
n×4
75959644
n×5
94949555
n÷2
9494955.5
n÷3
6329970.3333333
n÷3
4747477.75
n÷5
3797982.2
n2
360616719787921
n3
6.8480794138846E+21
n4
1.300444185906E+29
n5
2.4695319350822E+36
2 √n
4357.7415022004
3 √n
266.79292580071
4 √n
66.013191880112
5 √n
28.556474249988
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
-18989910
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 18989911 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989911) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001101010111
3
Ternary
1022201210021001
4
Quaternary
1020130031113
5
Quinary
14330134121
6
Senary
1515004131
8
Octal
110341527
10
Decimal
18989911
12
Duodecimal
6439647
16
Hexadecimal
121c357
20
Vigesimal
5idefb
36
Base36
bb0pj
md5
4bde1c028717e4d95b16b59a87346b51
sha1
e37b1e1e391fc2779be5c4771fb453c5d1ae0aeb
sha256
52fc7f0f783634c6006742e84e1156f55facbf8c0070cf00c649014272cc8c3d
sha512
46a479045e6faca99b83b2478ecd49d620b826387a6ddf7ffddcd17f4673c4cb5c8337cee52052a709444a20c24f874025c772bd68a82fafdd4b589e25f72279
ripemd-160
3f735bd63e423739344d20f7c56910bb45b8bd46
Diameter
37979822
Circumference
119317129.77985
Area
1.1329108376474E+15
Volume
2.8685167970479E+22
Surface area
4.5316433505895E+15
Circumference
119317129.77985
Perimeter
75959644
Area
360616719787921
Diagonal
26855789.684458
Surface area
2163700318727526
Volume
6.8480794138846E+21
Space diagonal
32891490.683211
Perimeter
56969733
Area
1.5615162018288E+14
Altitude
16445745.341606
Surface area
1.5615162018288E+14
Volume
8.070538986103E+20
Height
8951929.8948193