20201989 is an odd 8-digits composite number following 20201988
and preceding 20201990 . In scientific notation, it is written as 2.0201989 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20161324 positive integers (up to 20201989) that are relatively prime to 20201989.
20201989 has 4 divisors, whose sum is 20242656
The reverse of 20201989 is 98910202
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million two hundred one thousand nine hundred eighty-nine
Scientific notation
2.0201989 × 10^7
Engineering notation
2.0201989 × 10^6
Prime Factorization
503 × 40163
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20201989
Product of the distinct prime numbers
The prime factorization of 20201989 is 503 × 40163.
Since it has a total of 2 prime factors.
6 , 5 , 28 , 40 , 918 , 623 , 609 , 7464 , 24394 , 19389 , 521650 , 429420 , 9700481 , 5435643 , 61817080 , 10654894 , 796393379 , 813312253 , 9730452225 , 2280036728
n×2
40403978
n×3
60605967
n×4
80807956
n×5
101009945
n÷2
10100994.5
n÷3
6733996.3333333
n÷3
5050497.25
n÷5
4040397.8
n2
408120359556121
n3
8.2448430144288E+21
n4
1.6656222788422E+29
n5
3.3648882955325E+36
2 √n
4494.662278748
3 √n
272.35250666479
4 √n
67.042242494922
5 √n
28.912045991056
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
-20201988
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 20201989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20201989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000100001000000101
3
Ternary
1102000100220211
4
Quaternary
1031010020011
5
Quinary
20132430424
6
Senary
2000555421
8
Octal
115041005
10
Decimal
20201989
12
Duodecimal
6922b71
16
Hexadecimal
1344205
20
Vigesimal
6654j9
36
Base36
c0zyd
md5
f441f09e3c38265097682ccc401e187d
sha1
c536efe346cfc1a5580d016334fad47c808e1243
sha256
3dfcd5e065567a21c6444d7c16b736c0ddd5f3d2b120cff6800c791f6b30934a
sha512
a76f01ccb514d80c0209d0a6d7fc917d1b41ecf79336ee1fab1f8da1e232c05f96b50d2be5321fa4d06fca904bbe604e17267f99c9aafa01d1570d4da79b7692
ripemd-160
f82205185eb42c626aa744f72d7d255efdfc5dac
Diameter
40403978
Circumference
126932840.4606
Area
1.2821479233619E+15
Volume
3.4535917658841E+22
Surface area
5.1285916934477E+15
Circumference
126932840.4606
Perimeter
80807956
Area
408120359556121
Diagonal
28569926.830712
Surface area
2448722157336726
Volume
8.2448430144288E+21
Space diagonal
34990871.361948
Perimeter
60605967
Area
1.7672129958862E+14
Altitude
17495435.680974
Surface area
1.7672129958862E+14
Volume
9.7166406755352E+20
Height
9523308.9435707