20121798 is an even 8-digits composite number following 20121797
and preceding 20121799 . In scientific notation, it is written as 2.0121798 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6354216 positive integers (up to 20121798) that are relatively prime to 20121798.
20121798 has 16 divisors, whose sum is 42361920
The reverse of 20121798 is 89712102
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred twenty-one thousand seven hundred ninety-eight
Scientific notation
2.0121798 × 10^7
Engineering notation
2.0121798 × 10^6
Prime Factorization
2 × 3 × 19 × 176507
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121798
Product of the distinct prime numbers
The prime factorization of 20121798 is 2 × 3 × 19 × 176507.
Since it has a total of 4 prime factors.
7 , 1 , 20 , 81 , 131 , 21 , 932 , 5023 , 27486 , 4741 , 41215 , 306999 , 2475145 , 1784692 , 21841969 , 26729581 , 778455149 , 893800951 , 8152487180 , 2210715929
n×2
40243596
n×3
60365394
n×4
80487192
n×5
100608990
n÷2
10060899
n÷3
6707266
n÷3
5030449.5
n÷5
4024359.6
n2
404886754752804
n3
8.1470494920115E+21
n4
1.6393328417426E+29
n5
3.298632429631E+36
2 √n
4485.7327160677
3 √n
271.99166460904
4 √n
66.975612845779
5 √n
28.889056413867
1 , 2 , 3 , 6 , 19 , 38 , 57 , 114 , 176507 , 353014 , 529521 , 1059042 , 3353633 , 6707266 , 10060899 , 20121798
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
-20121797
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 20121798 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121798) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100011000110
3
Ternary
1101212021220210
4
Quaternary
1030300203012
5
Quinary
20122344143
6
Senary
1555140250
8
Octal
114604306
10
Decimal
20121798
12
Duodecimal
68a4686
16
Hexadecimal
13308c6
20
Vigesimal
65f49i
36
Base36
bza2u
md5
d87a444e1e74727c1801019dd5f9006a
sha1
921e345ec32dc2d92c37636b844d6232ba06948e
sha256
bf5ed530eba72c74bd98bb359c550bd849e02b45b3358cd32af9558921ad464c
sha512
68e08384be92b761a65f4478a410b6c898c9951e3a76caa9e9a0c3f8aed113989febaff6144b1069ba4204a97258554f3378299c4bff86eb6d3ff72264e0af62
ripemd-160
37e3a6cd3f1efdcd947308398151fdcd754687db
Diameter
40243596
Circumference
126428985.54764
Area
1.2719892542672E+15
Volume
3.4126281110048E+22
Surface area
5.0879570170689E+15
Circumference
126428985.54764
Perimeter
80487192
Area
404886754752804
Diagonal
28456519.630932
Surface area
2429320528516824
Volume
8.1470494920115E+21
Space diagonal
34851976.475638
Perimeter
60365394
Area
1.7532110763588E+14
Altitude
17425988.237819
Surface area
1.7532110763588E+14
Volume
9.6013899041062E+20
Height
9485506.5436439