20154909 is an odd 8-digits composite number following 20154908
and preceding 20154910 . In scientific notation, it is written as 2.0154909 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13436604 positive integers (up to 20154909) that are relatively prime to 20154909.
20154909 has 4 divisors, whose sum is 26873216
The reverse of 20154909 is 90945102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred fifty-four thousand nine hundred nine
Scientific notation
2.0154909 × 10^7
Engineering notation
2.0154909 × 10^6
Prime Factorization
3 × 6718303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20154909
Product of the distinct prime numbers
The prime factorization of 20154909 is 3 × 6718303.
Since it has a total of 2 prime factors.
10 , 7 , 67 , 81 , 717 , 991 , 7227 , 542 , 74211 , 82748 , 310733 , 892835 , 2705868 , 5256097 , 47786547 , 2371921 , 664247722 , 709637949 , 593334268 , 7676450347
n×2
40309818
n×3
60464727
n×4
80619636
n×5
100774545
n÷2
10077454.5
n÷3
6718303
n÷3
5038727.25
n÷5
4030981.8
n2
406220356798281
n3
8.1873343252169E+21
n4
1.6501497827732E+29
n5
3.3258618708164E+36
2 √n
4489.4219004233
3 √n
272.14077289923
4 √n
67.003148436646
5 √n
28.898557717463
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
-20154908
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 20154909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20154909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000101000011101
3
Ternary
1101220222100010
4
Quaternary
1030320220131
5
Quinary
20124424114
6
Senary
1555553433
8
Octal
114705035
10
Decimal
20154909
12
Duodecimal
68bb879
16
Hexadecimal
1338a1d
20
Vigesimal
65j759
36
Base36
bzzml
md5
d17e794399e72f105e666d093a92da82
sha1
66839aacbaea319b4c25e93878deca737559624a
sha256
0600c066ec7a6be4132da1eaf0b2fc2e97fbf8fe0ff1bd23fd1b86b69c7330d1
sha512
02dad298094a83202a6a31e1a27778d57a9590b4a30543474d28eb7f528eb40f6d1e05f6d465cc842d29c3ffe625342ace6e4dd815d3b8c11743c2fcea8bdb31
ripemd-160
47295aa3dd487cb347c047eb06a7881b84ea3def
Diameter
40309818
Circumference
126637028.09634
Area
1.2761788886561E+15
Volume
3.429502582478E+22
Surface area
5.1047155546244E+15
Circumference
126637028.09634
Perimeter
80619636
Area
406220356798281
Diagonal
28503345.656196
Surface area
2437322140789686
Volume
8.1873343252169E+21
Space diagonal
34909326.409927
Perimeter
60464727
Area
1.7589857426084E+14
Altitude
17454663.204964
Surface area
1.7589857426084E+14
Volume
9.6488660353371E+20
Height
9501115.2187319