20180890 is an even 8-digits composite number following 20180889
and preceding 20180891 . In scientific notation, it is written as 2.0180890 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 7721296 positive integers (up to 20180890) that are relatively prime to 20180890.
20180890 has 16 divisors, whose sum is 37905408
The reverse of 20180890 is 09808102
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eighty thousand eight hundred ninety
Scientific notation
2.0180890 × 10^7
Engineering notation
2.0180890 × 10^6
Prime Factorization
2 × 5 × 23 × 87743
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20180890
Product of the distinct prime numbers
The prime factorization of 20180890 is 2 × 5 × 23 × 87743.
Since it has a total of 4 prime factors.
8 , 2 , 18 , 79 , 199 , 402 , 3752 , 287 , 99107 , 43548 , 531895 , 81374 , 7928116 , 5514588 , 48218588 , 23058727 , 492926382 , 604749962 , 2696341368 , 1693183237
n×2
40361780
n×3
60542670
n×4
80723560
n×5
100904450
n÷2
10090445
n÷3
6726963.3333333
n÷3
5045222.5
n÷5
4036178
n2
407268321192100
n3
8.2190371904624E+21
n4
1.6586748544663E+29
n5
3.3473534783751E+36
2 √n
4492.3145482034
3 √n
272.25765845941
4 √n
67.024730870056
5 √n
28.906004306164
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 87743 , 175486 , 438715 , 877430 , 2018089 , 4036178 , 10090445 , 20180890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20180889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20180890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20180890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110111110011010
3
Ternary
1101222021222101
4
Quaternary
1030332332122
5
Quinary
20131242030
6
Senary
2000314014
8
Octal
114767632
10
Decimal
20180890
12
Duodecimal
691290a
16
Hexadecimal
133ef9a
20
Vigesimal
662c4a
36
Base36
c0joa
md5
cdd569a1f5d03da4bc4f1995b690d022
sha1
c7545573c5b72a19d3a7cd8e1132d70b128e284a
sha256
49464eb83d077ccf5efa61ad20d0bdf12ed6bfe7edcd3ea649d80ea47e3a9690
sha512
6ca28d9e7b3b34c1075e8594103653a2d5c8e7802aadfd036aeedcb733689660a4c308db7c7bf97d12842f52956a1e2557bfc5770aa07ba2d5442f7593cf6536
ripemd-160
6b42367168feec2c93391701a9a13cb1081caf68
Diameter
40361780
Circumference
126800271.53381
Area
1.2794711658969E+15
Volume
3.4427822476184E+22
Surface area
5.1178846635878E+15
Circumference
126800271.53381
Perimeter
80723560
Area
407268321192100
Diagonal
28540088.33876
Surface area
2443609927152600
Volume
8.2190371904624E+21
Space diagonal
34954326.821959
Perimeter
60542670
Area
1.763523561545E+14
Altitude
17477163.410979
Surface area
1.763523561545E+14
Volume
9.686228220334E+20
Height
9513362.7795865