20405901 is an odd 8-digits composite number following 20405900
and preceding 20405902 . In scientific notation, it is written as 2.0405901 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13347152 positive integers (up to 20405901) that are relatively prime to 20405901.
20405901 has 8 divisors, whose sum is 27721440
The reverse of 20405901 is 10950402
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred five thousand nine hundred one
Scientific notation
2.0405901 × 10^7
Engineering notation
2.0405901 × 10^6
Prime Factorization
3 × 53 × 128339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20405901
Product of the distinct prime numbers
The prime factorization of 20405901 is 3 × 53 × 128339.
Since it has a total of 3 prime factors.
5 , 9 , 76 , 10 , 796 , 370 , 5488 , 8582 , 81089 , 91603 , 74778 , 117154 , 3651013 , 1489993 , 41278323 , 70662489 , 699758714 , 447740018 , 8038868941 , 9023947458
n×2
40811802
n×3
61217703
n×4
81623604
n×5
102029505
n÷2
10202950.5
n÷3
6801967
n÷3
5101475.25
n÷5
4081180.2
n2
416400795621801
n3
8.4970334117797E+21
n4
1.7338962259447E+29
n5
3.5381714730901E+36
2 √n
4517.2891207006
3 √n
273.26578524509
4 √n
67.210781283218
5 √n
28.97017742896
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
-20405900
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 20405901 can be divided by 8 positive divisors.
The sum of these divisors (counting 20405901) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101111010001101
3
Ternary
1102101201122010
4
Quaternary
1031311322031
5
Quinary
20210442101
6
Senary
2005211433
8
Octal
115657215
10
Decimal
20405901
12
Duodecimal
6a00b79
16
Hexadecimal
1375e8d
20
Vigesimal
67aef1
36
Base36
c5dal
md5
115b6f579aba72f93acf035a66ed99cf
sha1
f66b478e9724dabbe492b28a0c24c9c5dcc9f170
sha256
2d239ee714d61ee0a53f844ef669e611190236f7d82ed86a513e90cac63e1429
sha512
aa348ec664c1329f936cf15dc11c2ac699f6f6942010482dce90ce63ff43aa2cc6700d4895d8c304be67b1ac180f48b5266df46719f45465a2c943e7f94859d1
ripemd-160
166eb2b48dbd1c13778ad4ab4e776bc81d620ec5
Diameter
40811802
Circumference
128214057.34296
Area
1.3081616804744E+15
Volume
3.5592290325006E+22
Surface area
5.2326467218976E+15
Circumference
128214057.34296
Perimeter
81623604
Area
416400795621801
Diagonal
28858301.946643
Surface area
2498404773730806
Volume
8.4970334117797E+21
Space diagonal
35344057.306221
Perimeter
61217703
Area
1.8030683358227E+14
Altitude
17672028.65311
Surface area
1.8030683358227E+14
Volume
1.0013849909063E+21
Height
9619433.9822142