20189487 is an odd 8-digits composite number following 20189486
and preceding 20189488 . In scientific notation, it is written as 2.0189487 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 13459656 positive integers (up to 20189487) that are relatively prime to 20189487.
20189487 has 4 divisors, whose sum is 26919320
The reverse of 20189487 is 78498102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred eighty-nine thousand four hundred eighty-seven
Scientific notation
2.0189487 × 10^7
Engineering notation
2.0189487 × 10^6
Prime Factorization
3 × 6729829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20189487
Product of the distinct prime numbers
The prime factorization of 20189487 is 3 × 6729829.
Since it has a total of 2 prime factors.
6 , 2 , 19 , 95 , 277 , 158 , 6352 , 1964 , 70426 , 53381 , 976879 , 15214 , 6069846 , 2350588 , 33765413 , 27955232 , 109338214 , 281019955 , 1477865861 , 6158607583
n×2
40378974
n×3
60568461
n×4
80757948
n×5
100947435
n÷2
10094743.5
n÷3
6729829
n÷3
5047371.75
n÷5
4037897.4
n2
407615385323169
n3
8.2295455229821E+21
n4
1.6615030235216E+29
n5
3.3544893693849E+36
2 √n
4493.271302737
3 √n
272.29631329253
4 √n
67.031867814772
5 √n
28.908466661242
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
-20189486
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 20189487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20189487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001000100101111
3
Ternary
1101222201202210
4
Quaternary
1031001010233
5
Quinary
20132030422
6
Senary
2000421503
8
Octal
115010457
10
Decimal
20189487
12
Duodecimal
6917893
16
Hexadecimal
134112f
20
Vigesimal
663de7
36
Base36
c0qb3
md5
eb97f76d881ba2e49fe3ed8b40cfac47
sha1
7a674180b73fb244a7c0d829131d0170dcf25f5e
sha256
3ea3920e9090cb21796eabaebb006254afb8f86447113eb12798192a736ad821
sha512
446a55557a1406ab1af3b6a1c319b5a534b8a3661d6fe108707ac2ead8e104117f8cdc56b7290cde1a4f828359a3b691e752f8693796261bbe277bc7bac22cf0
ripemd-160
6154d9cce8567aa20fe7bd010a7e83bcaa9521e3
Diameter
40378974
Circumference
126854288.07789
Area
1.2805615000214E+15
Volume
3.4471839676511E+22
Surface area
5.1222460000858E+15
Circumference
126854288.07789
Perimeter
80757948
Area
407615385323169
Diagonal
28552246.332755
Surface area
2445692311939014
Volume
8.2295455229821E+21
Space diagonal
34969217.262751
Perimeter
60568461
Area
1.7650263933162E+14
Altitude
17484608.631376
Surface area
1.7650263933162E+14
Volume
9.6986124089734E+20
Height
9517415.4442518