20180989 is an odd 8-digits composite number following 20180988
and preceding 20180990 . In scientific notation, it is written as 2.0180989 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 18993856 positive integers (up to 20180989) that are relatively prime to 20180989.
20180989 has 4 divisors, whose sum is 21368124
The reverse of 20180989 is 98908102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred eighty thousand nine hundred eighty-nine
Scientific notation
2.0180989 × 10^7
Engineering notation
2.0180989 × 10^6
Prime Factorization
17 × 1187117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180989
Product of the distinct prime numbers
The prime factorization of 20180989 is 17 × 1187117.
Since it has a total of 2 prime factors.
4 , 3 , 25 , 7 , 727 , 734 , 8208 , 3610 , 26743 , 75736 , 153497 , 432482 , 6782297 , 2811922 , 60267784 , 69765863 , 521694410 , 886751382 , 2291638819 , 3883341605
n×2
40361978
n×3
60542967
n×4
80723956
n×5
100904945
n÷2
10090494.5
n÷3
6726996.3333333
n÷3
5045247.25
n÷5
4036197.8
n2
407272317018121
n3
8.2191581497472E+21
n4
1.6587074020931E+29
n5
3.3474355835859E+36
2 √n
4492.3255670087
3 √n
272.25810365722
4 √n
67.024813069554
5 √n
28.906032666546
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
-20180988
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 20180989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111111111101
3
Ternary
1101222022010001
4
Quaternary
1030332333331
5
Quinary
20131242424
6
Senary
2000314301
8
Octal
114767775
10
Decimal
20180989
12
Duodecimal
6912991
16
Hexadecimal
133effd
20
Vigesimal
662c99
36
Base36
c0jr1
md5
c4c66ec1fcb1629903f228fc20ab4cd5
sha1
2402086d0eb605f53c2d2cbafe24740593169717
sha256
7d714aedd393227c4f1f1720bb0cb05bc21891584199bd155c6b158a270d6744
sha512
552716eef21ca89ca9c0d7ed4909fc07582c2bbeba938a78966b047539702dee418f0d5616667a1b651b1743cf3b50526c56ba6764ffe13911b0cc9d3faf4ada
ripemd-160
b45e931b32ab60907da7f61861c04eeec3a3c939
Diameter
40361978
Circumference
126800893.56915
Area
1.2794837191546E+15
Volume
3.4428329149251E+22
Surface area
5.1179348766185E+15
Circumference
126800893.56915
Perimeter
80723956
Area
407272317018121
Diagonal
28540228.345902
Surface area
2443633902108726
Volume
8.2191581497472E+21
Space diagonal
34954498.294989
Perimeter
60542967
Area
1.7635408639792E+14
Altitude
17477249.147494
Surface area
1.7635408639792E+14
Volume
9.6863707722182E+20
Height
9513409.4486341