20405428 is an even 8-digits composite number following 20405427
and preceding 20405429 . In scientific notation, it is written as 2.0405428 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 10202712 positive integers (up to 20405428) that are relatively prime to 20405428.
20405428 has 6 divisors, whose sum is 35709506
The reverse of 20405428 is 82450402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred five thousand four hundred twenty-eight
Scientific notation
2.0405428 × 10^7
Engineering notation
2.0405428 × 10^6
Prime Factorization
2 × 2 × 5101357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10202714
Product of the distinct prime numbers
The prime factorization of 20405428 is 2 × 2 × 5101357.
Since it has a total of 3 prime factors.
10 , 6 , 94 , 95 , 330 , 140 , 2696 , 6587 , 80989 , 93242 , 744358 , 994964 , 6063075 , 915547 , 85779320 , 8205885 , 563137009 , 311337352 , 4704516559 , 4866683313
n×2
40810856
n×3
61216284
n×4
81621712
n×5
102027140
n÷2
10202714
n÷3
6801809.3333333
n÷3
5101357
n÷5
4081085.6
n2
416381491863184
n3
8.4964425527468E+21
n4
1.7337354676621E+29
n5
3.5377614256425E+36
2 √n
4517.2367659887
3 √n
273.26367383435
4 √n
67.210391800589
5 √n
28.970043124467
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20405427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20405428 can be divided by 6 positive divisors.
The sum of these divisors (counting 20405428) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101110101110010110100
3
Ternary
1102101200222121
4
Quaternary
1031311302310
5
Quinary
20210433203
6
Senary
2005205324
8
Octal
115656264
10
Decimal
20405428
12
Duodecimal
6a00844
16
Hexadecimal
1375cb4
20
Vigesimal
67adb8
36
Base36
c5cxg
md5
68a51a5cca574f1073f48bf07f7deb86
sha1
8736ac9c76cdbb786ff8c79bb4abf4bc3cf894c3
sha256
8a97b9a5d622594b0180298a3e3fab1821902a3f9e46f7ddf967e747b09f5fa4
sha512
b21255e9adedb0972c3bc03c4a041dd8e62915ef9dd6f72ab9a7a42b51cf03764ab5e1df01ededd0390afa84f2d68372e5f5083053053cbc53f62a0a53be3d5a
ripemd-160
8906f5ab6293aa86ce408b7e655a2c4b1266a6b1
Diameter
40810856
Circumference
128211085.39631
Area
1.3081010359281E+15
Volume
3.5589815340476E+22
Surface area
5.2324041437125E+15
Circumference
128211085.39631
Perimeter
81621712
Area
416381491863184
Diagonal
28857633.023628
Surface area
2498288951179104
Volume
8.4964425527468E+21
Space diagonal
35343238.046189
Perimeter
61216284
Area
1.8029847480959E+14
Altitude
17671619.023094
Surface area
1.8029847480959E+14
Volume
1.0013153575015E+21
Height
9619211.0078759