20731949 is an odd 8-digits composite number following 20731948
and preceding 20731950 . In scientific notation, it is written as 2.0731949 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 17769948 positive integers (up to 20731949) that are relatively prime to 20731949.
20731949 has 8 divisors, whose sum is 24177600
The reverse of 20731949 is 94913702
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred thirty-one thousand nine hundred forty-nine
Scientific notation
2.0731949 × 10^7
Engineering notation
2.0731949 × 10^6
Prime Factorization
7 × 7 × 7 × 60443
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
423101
Product of the distinct prime numbers
The prime factorization of 20731949 is 7 × 7 × 7 × 60443.
Since it has a total of 4 prime factors.
9 , 7 , 11 , 38 , 250 , 412 , 2900 , 1082 , 81027 , 45327 , 678519 , 288577 , 8532531 , 7405446 , 1901502 , 40562850 , 336144085 , 913074775 , 5037254282 , 9869973545
n×2
41463898
n×3
62195847
n×4
82927796
n×5
103659745
n÷2
10365974.5
n÷3
6910649.6666667
n÷3
5182987.25
n÷5
4146389.8
n2
429813709338601
n3
8.9108759015087E+21
n4
1.8473982473541E+29
n5
3.8300166246834E+36
2 √n
4553.2350038187
3 √n
274.71352647126
4 √n
67.47766299909
5 √n
29.062169163599
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
-20731948
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 20731949 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731949) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101100000101101
3
Ternary
1110000021212222
4
Quaternary
1033011200231
5
Quinary
20301410244
6
Senary
2020205125
8
Octal
117054055
10
Decimal
20731949
12
Duodecimal
6b397a5
16
Hexadecimal
13c582d
20
Vigesimal
69b9h9
36
Base36
cccvh
md5
1b6844ca969f44e165e32a75712d976d
sha1
2cda0d0c650bfdfccf4883f1e46bfe7c9838e428
sha256
a610eeeda45d4431188bd7f9d6296bb0cb13e7704f9362822df1d0acd28115d7
sha512
e847c1080d46ae55a10f76cd79a91cb84bfd222086fe1b6b0ddf986fd388e14d1f0f73468df50f8533db29a8319212409d76517582148af53abd2f4d5a88b60b
ripemd-160
99d3c6d9d28fef68c5baf05a6a21f5b673f04506
Diameter
41463898
Circumference
130262677.346
Area
1.3502995916703E+15
Volume
3.7325789692307E+22
Surface area
5.4011983666813E+15
Circumference
130262677.346
Perimeter
82927796
Area
429813709338601
Diagonal
29319403.450227
Surface area
2578882256031606
Volume
8.9108759015087E+21
Space diagonal
35908789.007927
Perimeter
62195847
Area
1.8611479559102E+14
Altitude
17954394.503963
Surface area
1.8611479559102E+14
Volume
1.0501567960448E+21
Height
9773134.4834091