20551815 is an odd 8-digits composite number following 20551814
and preceding 20551816 . In scientific notation, it is written as 2.0551815 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 10779840 positive integers (up to 20551815) that are relatively prime to 20551815.
20551815 has 24 divisors, whose sum is 36211968
The reverse of 20551815 is 51815502
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million five hundred fifty-one thousand eight hundred fifteen
Scientific notation
2.0551815 × 10^7
Engineering notation
2.0551815 × 10^6
Prime Factorization
3 × 3 × 5 × 61 × 7487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6850605
Product of the distinct prime numbers
The prime factorization of 20551815 is 3 × 3 × 5 × 61 × 7487.
Since it has a total of 5 prime factors.
9 , 7 , 95 , 87 , 861 , 111 , 8240 , 3484 , 2840 , 90944 , 37747 , 216318 , 5654335 , 5362736 , 93115127 , 66870625 , 810676796 , 1776471 , 4318189946 , 9123049974
n×2
41103630
n×3
61655445
n×4
82207260
n×5
102759075
n÷2
10275907.5
n÷3
6850605
n÷3
5137953.75
n÷5
4110363
n2
422377099794225
n3
8.6806160152075E+21
n4
1.7840241443058E+29
n5
3.6664934169306E+36
2 √n
4533.4109674725
3 √n
273.91557506944
4 √n
67.330609439337
5 √n
29.011490139866
1 , 3 , 5 , 9 , 15 , 45 , 61 , 183 , 305 , 549 , 915 , 2745 , 7487 , 22461 , 37435 , 67383 , 112305 , 336915 , 456707 , 1370121 , 2283535 , 4110363 , 6850605 , 20551815
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20551814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20551815 can be divided by 24 positive divisors.
The sum of these divisors (counting 20551815) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110011001100010000111
3
Ternary
1102200010210100
4
Quaternary
1032121202013
5
Quinary
20230124230
6
Senary
2012255143
8
Octal
116314207
10
Decimal
20551815
12
Duodecimal
6a714b3
16
Hexadecimal
1399887
20
Vigesimal
688jaf
36
Base36
c8hvr
md5
ecd6a3fd5719e98a0d8431bd615e8c22
sha1
a323c3612139709757fe596cf0554cd7d81f8ca4
sha256
37656404d08ad395f8830e156c1508dee0a92e594a1b59fdd178b841dfc24024
sha512
5325dfb69ce1f37b87b77726ca62a4129e10bd58dd37e8877fefab6a0f711e2e4a312f4ab5dcd748c741c2a1e4f9c97c3b3a4c528d85290f41546e4394871b85
ripemd-160
b18b62c689cce156cd5328ecc2cb61dc77f41d66
Diameter
41103630
Circumference
129130862.04387
Area
1.3269367937581E+15
Volume
3.6361279336013E+22
Surface area
5.3077471750324E+15
Circumference
129130862.04387
Perimeter
82207260
Area
422377099794225
Diagonal
29064655.504383
Surface area
2534262598765350
Volume
8.6806160152075E+21
Space diagonal
35596787.767756
Perimeter
61655445
Area
1.828946491993E+14
Altitude
17798393.883878
Surface area
1.828946491993E+14
Volume
1.023020408205E+21
Height
9688218.5014609