18286989 is an odd 8-digits composite number following 18286988
and preceding 18286990 . In scientific notation, it is written as 1.8286989 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 10449696 positive integers (up to 18286989) that are relatively prime to 18286989.
18286989 has 8 divisors, whose sum is 27865920
The reverse of 18286989 is 98968281
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million two hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
1.8286989 × 10^7
Engineering notation
1.8286989 × 10^6
Prime Factorization
3 × 7 × 870809
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18286989
Product of the distinct prime numbers
The prime factorization of 18286989 is 3 × 7 × 870809.
Since it has a total of 3 prime factors.
7 , 2 , 46 , 55 , 787 , 870 , 6534 , 178 , 55858 , 90184 , 353862 , 61628 , 8248422 , 1794833 , 14034798 , 32375853 , 304455628 , 136937549 , 9616378164 , 9615622544
n×2
36573978
n×3
54860967
n×4
73147956
n×5
91434945
n÷2
9143494.5
n÷3
6095663
n÷3
4571747.25
n÷5
3657397.8
n2
334413966686121
n3
6.1154245302355E+21
n4
1.1183270111475E+29
n5
2.0450833751256E+36
2 √n
4276.3289162552
3 √n
263.45962412464
4 √n
65.39364584006
5 √n
28.341866023845
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
-18286988
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 18286989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18286989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101110000100110001101
3
Ternary
1021102002000220
4
Quaternary
1011300212031
5
Quinary
14140140424
6
Senary
1451541553
8
Octal
105604615
10
Decimal
18286989
12
Duodecimal
615a8b9
16
Hexadecimal
117098d
20
Vigesimal
5e5h99
36
Base36
avybx
md5
af51ce61fc1e4ef6503fb5a856c9b352
sha1
61c6a2bdc9c2ea238cf666872eea62c3323c4947
sha256
cd1128c0fd37c54afb6f0a76baa290ede52548f43da2adce93fae7405f32b097
sha512
9fbc8aa2442b750939653db52f2d495a565407fde9e9c3c951d480d96628f1bf2f77b798f3cfc35881f8d04ff494bd170ac2bd85b39980a3eda4b621a63098e2
ripemd-160
23d4595dfd827fe06268260cd7fbcbbd9085e751
Diameter
36573978
Circumference
114900540.59735
Area
1.0505924609989E+15
Volume
2.5616230370361E+22
Surface area
4.2023698439958E+15
Circumference
114900540.59735
Perimeter
73147956
Area
334413966686121
Diagonal
25861707.858768
Surface area
2006483800116726
Volume
6.1154245302355E+21
Space diagonal
31673994.065453
Perimeter
54860967
Area
1.4480549526525E+14
Altitude
15836997.032727
Surface area
1.4480549526525E+14
Volume
7.2070969252734E+20
Height
8620569.2862559