20405961 is an odd 8-digits composite number following 20405960
and preceding 20405962 . In scientific notation, it is written as 2.0405961 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13543200 positive integers (up to 20405961) that are relatively prime to 20405961.
20405961 has 8 divisors, whose sum is 22774600
The reverse of 20405961 is 16950402
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred five thousand nine hundred sixty-one
Scientific notation
2.0405961 × 10^7
Engineering notation
2.0405961 × 10^6
Prime Factorization
9 × 229 × 9901
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20405961
Product of the distinct prime numbers
The prime factorization of 20405961 is 9 × 229 × 9901.
Since it has a total of 3 prime factors.
10 , 10 , 66 , 86 , 654 , 621 , 5152 , 6275 , 89737 , 57236 , 74124 , 471277 , 6702665 , 5191385 , 5371122 , 17874568 , 54787208 , 642611779 , 4567354642 , 7868338636
n×2
40811922
n×3
61217883
n×4
81623844
n×5
102029805
n÷2
10202980.5
n÷3
6801987
n÷3
5101490.25
n÷5
4081192.2
n2
416403244333521
n3
8.4971083641433E+21
n4
1.7339166189148E+29
n5
3.5382234902828E+36
2 √n
4517.2957618469
3 √n
273.26605307498
4 √n
67.210830688565
5 √n
28.970194465293
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
-20405960
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 20405961 can be divided by 8 positive divisors.
The sum of these divisors (counting 20405961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101111011001001
3
Ternary
1102101201201100
4
Quaternary
1031311323021
5
Quinary
20210442321
6
Senary
2005212013
8
Octal
115657311
10
Decimal
20405961
12
Duodecimal
6a01009
16
Hexadecimal
1375ec9
20
Vigesimal
67aei1
36
Base36
c5dc9
md5
b7f4f66c6bfc766e855433041821ddcd
sha1
5156f6269bbd3fca76c67cdbf5b37bec04a9dbf2
sha256
6c70e95f676c0a49706fa4694d4af0a004c327e4957596b74899e8db2b518fc9
sha512
beecec2e5bd4b08ab4907586e1de47df52a31dfcdafef9a119423beea221dd637d06a53c67c4c54452a3cc4d567f634f5fd40aadd3c42e7ecf6a0c86be6c5c4c
ripemd-160
e9b126558f1d132d48e70d27c604fd66c1e566ab
Diameter
40811922
Circumference
128214434.33408
Area
1.3081693733291E+15
Volume
3.5592604284732E+22
Surface area
5.2326774933166E+15
Circumference
128214434.33408
Perimeter
81623844
Area
416403244333521
Diagonal
28858386.799456
Surface area
2498419466001126
Volume
8.4971083641433E+21
Space diagonal
35344161.229269
Perimeter
61217883
Area
1.8030789390554E+14
Altitude
17672080.614635
Surface area
1.8030789390554E+14
Volume
1.0013938241271E+21
Height
9619462.2664855