20138909 is an odd 8-digits composite number following 20138908
and preceding 20138910 . In scientific notation, it is written as 2.0138909 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17229600 positive integers (up to 20138909) that are relatively prime to 20138909.
20138909 has 8 divisors, whose sum is 23059008
The reverse of 20138909 is 90983102
Previous prime number is 601
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred thirty-eight thousand nine hundred nine
Scientific notation
2.0138909 × 10^7
Engineering notation
2.0138909 × 10^6
Prime Factorization
7 × 601 × 4787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138909
Product of the distinct prime numbers
The prime factorization of 20138909 is 7 × 601 × 4787.
Since it has a total of 3 prime factors.
7 , 3 , 58 , 85 , 555 , 119 , 9621 , 4541 , 78415 , 23012 , 198234 , 125765 , 3491161 , 7360466 , 55931251 , 9034649 , 532133634 , 302036045 , 2612100917 , 9061409097
n×2
40277818
n×3
60416727
n×4
80555636
n×5
100694545
n÷2
10069454.5
n÷3
6712969.6666667
n÷3
5034727.25
n÷5
4027781.8
n2
405575655710281
n3
8.1678512229647E+21
n4
1.6449161250482E+29
n5
3.3126816154979E+36
2 √n
4487.6395800019
3 √n
272.06874073601
4 √n
66.989846842652
5 √n
28.893968028501
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138909 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101110011101
3
Ternary
1101220011101112
4
Quaternary
1030310232131
5
Quinary
20123421114
6
Senary
1555351405
8
Octal
114645635
10
Decimal
20138909
12
Duodecimal
68b2565
16
Hexadecimal
1334b9d
20
Vigesimal
65h759
36
Base36
bzna5
md5
d8f28fed5846a8029e03c37e64642414
sha1
f9c5b5129405200239b0b17c9ab562b31bb549db
sha256
3cb0171d5ed03d9c7c7aafa6fc0f2c9641e503b7adafa1158582099de7e6e230
sha512
c4749a1329486a5667fcf810f4b855bbae6dfce83159d1892c2cda77ecbff20d01b437590cd9f8d2041795604106b2184efd860d619a2aa285e15fd26d4c0646
ripemd-160
8fc5e9b8dc507f58d766cb0adb10981a1b809461
Diameter
40277818
Circumference
126536497.13143
Area
1.2741535004543E+15
Volume
3.4213415196907E+22
Surface area
5.0966140018171E+15
Circumference
126536497.13143
Perimeter
80555636
Area
405575655710281
Diagonal
28480718.239198
Surface area
2433453934261686
Volume
8.1678512229647E+21
Space diagonal
34881613.597006
Perimeter
60416727
Area
1.7561941050082E+14
Altitude
17440806.798503
Surface area
1.7561941050082E+14
Volume
9.6259049791353E+20
Height
9493572.7463992