20505551 is an odd 8-digits composite number following 20505550
and preceding 20505552 . In scientific notation, it is written as 2.0505551 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 18362520 positive integers (up to 20505551) that are relatively prime to 20505551.
20505551 has 8 divisors, whose sum is 22704384
The reverse of 20505551 is 15550502
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million five hundred five thousand five hundred fifty-one
Scientific notation
2.0505551 × 10^7
Engineering notation
2.0505551 × 10^6
Prime Factorization
11 × 67 × 27823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20505551
Product of the distinct prime numbers
The prime factorization of 20505551 is 11 × 67 × 27823.
Since it has a total of 3 prime factors.
4 , 5 , 94 , 1 , 21 , 977 , 1403 , 6989 , 45046 , 78424 , 447167 , 970563 , 6078639 , 5821658 , 70704080 , 10762789 , 709636037 , 341544243 , 2195098160 , 2089580313
n×2
41011102
n×3
61516653
n×4
82022204
n×5
102527755
n÷2
10252775.5
n÷3
6835183.6666667
n÷3
5126387.75
n÷5
4101110.2
n2
420477621813601
n3
8.6221253184575E+21
n4
1.7680143044602E+29
n5
3.6254107488838E+36
2 √n
4528.3055329781
3 √n
273.70988437976
4 √n
67.292685583042
5 √n
28.99841686367
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20505550
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20505551 can be divided by 8 positive divisors.
The sum of these divisors (counting 20505551) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001110001111001111
3
Ternary
1102120210022212
4
Quaternary
1032032033033
5
Quinary
20222134201
6
Senary
2011301035
8
Octal
116161717
10
Decimal
20505551
12
Duodecimal
6a4a77b
16
Hexadecimal
138e3cf
20
Vigesimal
6833hb
36
Base36
c7i6n
md5
1106b6f1cf85b720dfd1dc004d603975
sha1
42b341de761d4dc5f5ea7a24f514408b68689eeb
sha256
2133d30d39a04d163702e09ce4470bc79cae6e40f2b83b21a7a05a2ea0b7b936
sha512
82ab19f437c11254a266fe80c8b2b926297fc3f9f1ea0df56681819f04a47a88d578fbcdafa8a1924177ae526501a8463824406f9368dc20a5a364c3ab84e274
ripemd-160
14edf7364e2f1162b5d26022320476123e50b11e
Diameter
41011102
Circumference
128840176.75882
Area
1.3209694076885E+15
Volume
3.6116274078396E+22
Surface area
5.2838776307541E+15
Circumference
128840176.75882
Perimeter
82022204
Area
420477621813601
Diagonal
28999228.328133
Surface area
2522865730881606
Volume
8.6221253184575E+21
Space diagonal
35516656.169195
Perimeter
61516653
Area
1.8207215110672E+14
Altitude
17758328.084597
Surface area
1.8207215110672E+14
Volume
1.0161272134869E+21
Height
9666409.4427111