20565381 is an odd 8-digits composite number following 20565380
and preceding 20565382 . In scientific notation, it is written as 2.0565381 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13114112 positive integers (up to 20565381) that are relatively prime to 20565381.
20565381 has 4 divisors, whose sum is 20863500
The reverse of 20565381 is 18356502
Previous prime number is 69
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million five hundred sixty-five thousand three hundred eighty-one
Scientific notation
2.0565381 × 10^7
Engineering notation
2.0565381 × 10^6
Prime Factorization
69 × 298049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20565381
Product of the distinct prime numbers
The prime factorization of 20565381 is 69 × 298049.
Since it has a total of 2 prime factors.
8 , 7 , 65 , 1 , 905 , 270 , 5060 , 4408 , 74787 , 95938 , 993115 , 637653 , 7349616 , 6260853 , 29550156 , 13388050 , 265101973 , 592092845 , 320244879 , 6441517780
n×2
41130762
n×3
61696143
n×4
82261524
n×5
102826905
n÷2
10282690.5
n÷3
6855127
n÷3
5141345.25
n÷5
4113076.2
n2
422934895675161
n3
8.6978172677549E+21
n4
1.7887392597976E+29
n5
3.6786104387395E+36
2 √n
4534.906945021
3 √n
273.97583124594
4 √n
67.341717716591
5 √n
29.015319154482
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20565380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20565381 can be divided by 4 positive divisors.
The sum of these divisors (counting 20565381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011100110110000101
3
Ternary
1102200211101210
4
Quaternary
1032130312011
5
Quinary
20231043011
6
Senary
2012442033
8
Octal
116346605
10
Decimal
20565381
12
Duodecimal
6a79319
16
Hexadecimal
139cd85
20
Vigesimal
68ad91
36
Base36
c8scl
md5
cf26a0def993d46af3ce6b9c7627db3f
sha1
09694581eb44cccb8c887c605f5c25ae2e50a812
sha256
ab8060d7b9c01dd797cc6f880cff8079023644572a48bbf017c9d6221cbfbe0e
sha512
eab5bb69e52e24467a2e4c97a57518f17a5918d697b8fb9f6374b7b6b77f801698b4130222170a60bb71dd826763724cf2db6fc8b5bfc5a8a41d36db9ed1e77f
ripemd-160
ff2d8e1be76dc138474ce7b5a885f963bccf32a0
Diameter
41130762
Circumference
129216099.73575
Area
1.3286891611999E+15
Volume
3.6433331774194E+22
Surface area
5.3147566447994E+15
Circumference
129216099.73575
Perimeter
82261524
Area
422934895675161
Diagonal
29083840.72557
Surface area
2537609374050966
Volume
8.6978172677549E+21
Space diagonal
35620284.769012
Perimeter
61696143
Area
1.8313618190081E+14
Altitude
17810142.384506
Surface area
1.8313618190081E+14
Volume
1.0250475952585E+21
Height
9694613.57519