20121565 is an odd 8-digits composite number following 20121564
and preceding 20121566 . In scientific notation, it is written as 2.0121565 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 15725952 positive integers (up to 20121565) that are relatively prime to 20121565.
20121565 has 16 divisors, whose sum is 24710400
The reverse of 20121565 is 56512102
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty-one thousand five hundred sixty-five
Scientific notation
2.0121565 × 10^7
Engineering notation
2.0121565 × 10^6
Prime Factorization
5 × 103 × 89 × 439
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121565
Product of the distinct prime numbers
The prime factorization of 20121565 is 5 × 103 × 89 × 439.
Since it has a total of 4 prime factors.
5 , 3 , 10 , 19 , 974 , 41 , 1293 , 9919 , 34281 , 84473 , 609429 , 316816 , 6841812 , 7730091 , 8180464 , 22188923 , 235152827 , 429438834 , 4504767068 , 1529482575
n×2
40243130
n×3
60364695
n×4
80486260
n×5
100607825
n÷2
10060782.5
n÷3
6707188.3333333
n÷3
5030391.25
n÷5
4024313
n2
404877378049225
n3
8.1467664794471E+21
n4
1.6392569125602E+29
n5
3.2984414517778E+36
2 √n
4485.7067447616
3 √n
271.99061476412
4 √n
66.975418959209
5 √n
28.888989509495
1 , 5 , 89 , 103 , 439 , 445 , 515 , 2195 , 9167 , 39071 , 45217 , 45835 , 195355 , 226085 , 4024313 , 20121565
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
-20121564
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 20121565 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121565) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011111011101
3
Ternary
1101212021121011
4
Quaternary
1030300133131
5
Quinary
20122342230
6
Senary
1555135221
8
Octal
114603735
10
Decimal
20121565
12
Duodecimal
68a4511
16
Hexadecimal
13307dd
20
Vigesimal
65f3i5
36
Base36
bz9wd
md5
0fbc797df6ada31bf4ac75f3304a302b
sha1
c3e2056e193f87bce0cbc7711a5070c5fe8d788c
sha256
74e758d8e22fe8c22fd2aab774e55174c94fc326b6ab0da5b5589600d48f7c3e
sha512
2d0153512a7d0febb2083628fb176ee9ded09eeaa51ff659578386331a325403d06022be3faafc6c5730a3d46ca5634a9b068c48d43f49c92d5548175a48c9d1
ripemd-160
3e19467777682e5008bc2347b9c669fe666a6a5a
Diameter
40243130
Circumference
126427521.56546
Area
1.2719597964841E+15
Volume
3.412509562979E+22
Surface area
5.0878391859366E+15
Circumference
126427521.56546
Perimeter
80486260
Area
404877378049225
Diagonal
28456190.119172
Surface area
2429264268295350
Volume
8.1467664794471E+21
Space diagonal
34851572.9078
Perimeter
60364695
Area
1.7531704740413E+14
Altitude
17425786.4539
Surface area
1.7531704740413E+14
Volume
9.6010563706004E+20
Height
9485396.7063906