20081909 is an odd 8-digits prime number following 20081908
and preceding 20081910 . In scientific notation, it is written as 2.0081909 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20081908 positive integers (up to 20081909) that are relatively prime to 20081909.
20081909 has 2 divisors, whose sum is 20081910
The reverse of 20081909 is 90918002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eighty-one thousand nine hundred nine
Scientific notation
2.0081909 × 10^7
Engineering notation
2.0081909 × 10^6
Prime Factorization
20081909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20081909
Product of the distinct prime numbers
The prime factorization of 20081909 is 20081909.
Since it has a total of 1 prime factors.
10 , 1 , 42 , 92 , 258 , 435 , 3669 , 9963 , 7696 , 25813 , 119141 , 840301 , 8284238 , 9438956 , 81484558 , 61130730 , 525384655 , 230986890 , 5130981950 , 6763638565
n×2
40163818
n×3
60245727
n×4
80327636
n×5
100409545
n÷2
10040954.5
n÷3
6693969.6666667
n÷3
5020477.25
n÷5
4016381.8
n2
403283069084281
n3
8.0986938945912E+21
n4
1.6263723381004E+29
n5
3.2660661293849E+36
2 √n
4481.2843025186
3 √n
271.81181566003
4 √n
66.942395404696
5 √n
28.877593517548
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20081910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10040955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4481.2844140938
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999004079
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081909 can be divided by 2 positive divisors.
The sum of these divisors (counting 20081909) is 20081910, the average is 10040955.
Base
System
Value
2
Binary
1001100100110110011110101
3
Ternary
1101210021012102
4
Quaternary
1030212303311
5
Quinary
20120110114
6
Senary
1554231445
8
Octal
114466365
10
Decimal
20081909
12
Duodecimal
6885585
16
Hexadecimal
1326cf5
20
Vigesimal
65a4f9
36
Base36
byfat
md5
ba99cf1342d821f3c9b0ba74ef8944e4
sha1
7d746ec2daef3e3f6614a14a1d1f1b2eafbe7477
sha256
500d13e927847ad34787427ee2fa507a29489373f2b94c8480e89d0fbd94b329
sha512
9b18cbe0b37e6ec3fb06caa9220186b4d32724901ce4e6145691fcd6298c4f4ca130ffc3afd3f93271cbdd188fe52728f3e41ffd15f012db55ff2075c24f6b67
ripemd-160
2930a6e7eb4526b840592904724a418e11d1737a
Diameter
40163818
Circumference
126178355.56892
Area
1.2669511271523E+15
Volume
3.3923729657227E+22
Surface area
5.0678045086093E+15
Circumference
126178355.56892
Perimeter
80327636
Area
403283069084281
Diagonal
28400108.066142
Surface area
2419698414505686
Volume
8.0986938945912E+21
Space diagonal
34782886.700975
Perimeter
60245727
Area
1.7462669137157E+14
Altitude
17391443.350487
Surface area
1.7462669137157E+14
Volume
9.5444022860326E+20
Height
9466702.6887141