20408891 is an odd 8-digits composite number following 20408890
and preceding 20408892 . In scientific notation, it is written as 2.0408891 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 19208096 positive integers (up to 20408891) that are relatively prime to 20408891.
20408891 has 6 divisors, whose sum is 21680340
The reverse of 20408891 is 19880402
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred eight thousand eight hundred ninety-one
Scientific notation
2.0408891 × 10^7
Engineering notation
2.0408891 × 10^6
Prime Factorization
17 × 17 × 70619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1200523
Product of the distinct prime numbers
The prime factorization of 20408891 is 17 × 17 × 70619.
Since it has a total of 3 prime factors.
10 , 7 , 13 , 11 , 337 , 76 , 5988 , 1696 , 845 , 10347 , 585152 , 620192 , 5391241 , 6235513 , 96220195 , 87099280 , 733273235 , 638272036 , 9500170157 , 697585134
n×2
40817782
n×3
61226673
n×4
81635564
n×5
102044455
n÷2
10204445.5
n÷3
6802963.6666667
n÷3
5102222.75
n÷5
4081778.2
n2
416522831849881
n3
8.5007690742356E+21
n4
1.7349126945224E+29
n5
3.5407644077025E+36
2 √n
4517.620059279
3 √n
273.27913146283
4 √n
67.213243183758
5 √n
28.971026357454
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
-20408890
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 20408891 can be divided by 6 positive divisors.
The sum of these divisors (counting 20408891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101110110101000111011
3
Ternary
1102101212201212
4
Quaternary
1031312220323
5
Quinary
20211041031
6
Senary
2005233335
8
Octal
115665073
10
Decimal
20408891
12
Duodecimal
6a0284b
16
Hexadecimal
1376a3b
20
Vigesimal
67b24b
36
Base36
c5fln
md5
3a3e05131933adbc1dffc0085d9be875
sha1
e63a0e86844736563b797f44edf1963b8f1267af
sha256
335f8ecc079829c03aa0c6c380df75951a46b42d8839a442dba188b44702265c
sha512
6b0d21ee7d47dd403f4055b10388fb9d7ff23fa6282127eff39096d70330ba254f61eb9bd104f0e0f4d88513a861d97bbe077eabaf1389c2dff3c50d622acac0
ripemd-160
e00315b1d35b89e068c2759f451029160609be40
Diameter
40817782
Circumference
128232844.06703
Area
1.308545068592E+15
Volume
3.5607938231309E+22
Surface area
5.234180274368E+15
Circumference
128232844.06703
Perimeter
81635564
Area
416522831849881
Diagonal
28862530.445194
Surface area
2499136991099286
Volume
8.5007690742356E+21
Space diagonal
35349236.138135
Perimeter
61226673
Area
1.8035967681912E+14
Altitude
17674618.069068
Surface area
1.8035967681912E+14
Volume
1.0018252429488E+21
Height
9620843.4817314