20291909 is an odd 8-digits composite number following 20291908
and preceding 20291910 . In scientific notation, it is written as 2.0291909 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 17810800 positive integers (up to 20291909) that are relatively prime to 20291909.
20291909 has 4 divisors, whose sum is 20355840
The reverse of 20291909 is 90919202
Previous prime number is 319
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million two hundred ninety-one thousand nine hundred nine
Scientific notation
2.0291909 × 10^7
Engineering notation
2.0291909 × 10^6
Prime Factorization
319 × 63611
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20291909
Product of the distinct prime numbers
The prime factorization of 20291909 is 319 × 63611.
Since it has a total of 2 prime factors.
9 , 8 , 33 , 56 , 131 , 984 , 4568 , 9299 , 40376 , 61292 , 486097 , 913761 , 713446 , 8356468 , 92490023 , 9584383 , 379377280 , 357991609 , 4038331247 , 4673832939
n×2
40583818
n×3
60875727
n×4
81167636
n×5
101459545
n÷2
10145954.5
n÷3
6763969.6666667
n÷3
5072977.25
n÷5
4058381.8
n2
411761570864281
n3
8.355428325675E+21
n4
1.6954759124062E+29
n5
3.4404442926239E+36
2 √n
4504.6541487666
3 √n
272.75599320098
4 √n
67.116720336788
5 √n
28.937738063428
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
-20291908
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 20291909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20291909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011010000101000101
3
Ternary
1102011221021012
4
Quaternary
1031122011011
5
Quinary
20143320114
6
Senary
2002532005
8
Octal
115320505
10
Decimal
20291909
12
Duodecimal
6967005
16
Hexadecimal
135a145
20
Vigesimal
66g9f9
36
Base36
c2xc5
md5
fdba037446e3e2e49de900358f557b67
sha1
c9333ef7c84ba2789e03d02cb1dacb8b245c9fb7
sha256
d1d2db875c462180eff0ff811e8280e7ba72449d906fab51341e1f5a45dcda3a
sha512
f54bed7fd8b295966f5358e5f0890d2972f186d8674a21619aa6941e3fee7eb17cc15bbd26666abde9f5a35fe6b0e58222e7ff1a93afc165ea4ba7e910b72ea4
ripemd-160
7d4ce2719714f95d0a5d4dcbb62c77b7ce954dc3
Diameter
40583818
Circumference
127497824.48343
Area
1.2935871260578E+15
Volume
3.4999136327382E+22
Surface area
5.1743485042313E+15
Circumference
127497824.48343
Perimeter
81167636
Area
411761570864281
Diagonal
28697092.914241
Surface area
2470569425185686
Volume
8.355428325675E+21
Space diagonal
35146617.370564
Perimeter
60875727
Area
1.7829799033533E+14
Altitude
17573308.685282
Surface area
1.7829799033533E+14
Volume
9.8469667146716E+20
Height
9565697.6380802