18390969 is an odd 8-digits composite number following 18390968
and preceding 18390970 . In scientific notation, it is written as 1.8390969 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 12260484 positive integers (up to 18390969) that are relatively prime to 18390969.
18390969 has 8 divisors, whose sum is 21191520
The reverse of 18390969 is 96909381
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million three hundred ninety thousand nine hundred sixty-nine
Scientific notation
1.8390969 × 10^7
Engineering notation
1.8390969 × 10^6
Prime Factorization
27 × 9 × 75683
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18390969
Product of the distinct prime numbers
The prime factorization of 18390969 is 27 × 9 × 75683.
Since it has a total of 3 prime factors.
9 , 1 , 21 , 33 , 471 , 467 , 407 , 5325 , 96421 , 53688 , 142817 , 845842 , 6845542 , 8858935 , 13419053 , 32384629 , 16261064 , 284122096 , 1021396397 , 8669960239
n×2
36781938
n×3
55172907
n×4
73563876
n×5
91954845
n÷2
9195484.5
n÷3
6130323
n÷3
4597742.25
n÷5
3678193.8
n2
338227740758961
n3
6.2203358952381E+21
n4
1.1439800461891E+29
n5
2.1038901566082E+36
2 √n
4288.4693073403
3 √n
263.95802535139
4 √n
65.486405515499
5 √n
28.374023393939
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
-18390968
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 18390969 can be divided by 8 positive divisors.
The sum of these divisors (counting 18390969) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001111110111001
3
Ternary
1021121100200000
4
Quaternary
1012021332321
5
Quinary
14202002334
6
Senary
1454103213
8
Octal
106117671
10
Decimal
18390969
12
Duodecimal
61aab09
16
Hexadecimal
1189fb9
20
Vigesimal
5eih89
36
Base36
ay6k9
md5
b63799b12748703d74bf51171258b30d
sha1
0d23df538f6f5abd53577d2609ffd83d25321e59
sha256
edbe5924c3d3a1245cd610824bdb079ef5043d4f079094b1588fb53de4a296da
sha512
5323d3ad01eaaf895b14da14639392b8638d78d2b142b2e7389cbb4f2b735870b50149dde200669b56ab3e761141eab768adb01d98b671694448afd61d15fe39
ripemd-160
e6546613fd020914dcc67ffec81fd57924258f68
Diameter
36781938
Circumference
115553866.2056
Area
1.0625737856086E+15
Volume
2.6055682068454E+22
Surface area
4.2502951424345E+15
Circumference
115553866.2056
Perimeter
73563876
Area
338227740758961
Diagonal
26008757.784983
Surface area
2029366444553766
Volume
6.2203358952381E+21
Space diagonal
31854092.708424
Perimeter
55172907
Area
1.4645690788094E+14
Altitude
15927046.354212
Surface area
1.4645690788094E+14
Volume
7.3307361546349E+20
Height
8669585.9283277