20201990 is an even 8-digits composite number following 20201989
and preceding 20201991 . In scientific notation, it is written as 2.0201990 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 8031744 positive integers (up to 20201990) that are relatively prime to 20201990.
20201990 has 16 divisors, whose sum is 36584352
The reverse of 20201990 is 09910202
Previous prime number is 167
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred one thousand nine hundred ninety
Scientific notation
2.0201990 × 10^7
Engineering notation
2.0201990 × 10^6
Prime Factorization
2 × 5 × 167 × 12097
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20201990
Product of the distinct prime numbers
The prime factorization of 20201990 is 2 × 5 × 167 × 12097.
Since it has a total of 4 prime factors.
7 , 6 , 61 , 24 , 41 , 913 , 5180 , 4822 , 40314 , 9678 , 689093 , 654640 , 8018891 , 4888028 , 25009386 , 28461807 , 391421425 , 324228341 , 6130495772 , 2780742043
n×2
40403980
n×3
60605970
n×4
80807960
n×5
101009950
n÷2
10100995
n÷3
6733996.6666667
n÷3
5050497.5
n÷5
4040398
n2
408120399960100
n3
8.2448442387899E+21
n4
1.6656226086359E+29
n5
3.3648891283437E+36
2 √n
4494.662389991
3 √n
272.35251115861
4 √n
67.042243324571
5 √n
28.912046277286
1 , 2 , 5 , 10 , 167 , 334 , 835 , 1670 , 12097 , 24194 , 60485 , 120970 , 2020199 , 4040398 , 10100995 , 20201990
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
-20201989
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 20201990 can be divided by 16 positive divisors.
The sum of these divisors (counting 20201990) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000100001000000110
3
Ternary
1102000100220212
4
Quaternary
1031010020012
5
Quinary
20132430430
6
Senary
2000555422
8
Octal
115041006
10
Decimal
20201990
12
Duodecimal
6922b72
16
Hexadecimal
1344206
20
Vigesimal
6654ja
36
Base36
c0zye
md5
e23427b2a33bc3d65f1d1e5334d1370e
sha1
db371286a9cb65b3e290fe9cb81ef597b76a8fca
sha256
c4189e210613658ca6ab0cefc64be659f631f811994200b5963af15826ee81e7
sha512
ecc2bf95b9dc6519d452004c4b474745bd1cf0519a4944a3e4aa0eb5f95f68b1a7e9c57270610fa12ab68c71b50f6ec374a1a86b699eb5af36909591cdfac033
ripemd-160
6ee020ae3dc6015a763df068b280d6a531b58ae9
Diameter
40403980
Circumference
126932846.74379
Area
1.2821480502948E+15
Volume
3.4535922787433E+22
Surface area
5.1285922011791E+15
Circumference
126932846.74379
Perimeter
80807960
Area
408120399960100
Diagonal
28569928.244926
Surface area
2448722399760600
Volume
8.2448442387899E+21
Space diagonal
34990873.093998
Perimeter
60605970
Area
1.7672131708406E+14
Altitude
17495436.546999
Surface area
1.7672131708406E+14
Volume
9.7166421184587E+20
Height
9523309.4149752