20731857 is an odd 8-digits composite number following 20731856
and preceding 20731858 . In scientific notation, it is written as 2.0731857 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13008192 positive integers (up to 20731857) that are relatively prime to 20731857.
20731857 has 8 divisors, whose sum is 29268576
The reverse of 20731857 is 75813702
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred thirty-one thousand eight hundred fifty-seven
Scientific notation
2.0731857 × 10^7
Engineering notation
2.0731857 × 10^6
Prime Factorization
3 × 17 × 406507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731857
Product of the distinct prime numbers
The prime factorization of 20731857 is 3 × 17 × 406507.
Since it has a total of 3 prime factors.
5 , 5 , 90 , 62 , 545 , 872 , 8246 , 2711 , 52103 , 98185 , 225651 , 487283 , 1879369 , 5114203 , 12845561 , 57275870 , 2714169 , 169564958 , 1125642904 , 2522524745
n×2
41463714
n×3
62195571
n×4
82927428
n×5
103659285
n÷2
10365928.5
n÷3
6910619
n÷3
5182964.25
n÷5
4146371.4
n2
429809894668449
n3
8.9107572734513E+21
n4
1.847365455549E+29
n5
3.8299316451182E+36
2 √n
4553.2249011003
3 √n
274.71312011484
4 √n
67.477588139325
5 √n
29.062143370324
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
-20731856
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 20731857 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731857) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011111010001
3
Ternary
1110000021202120
4
Quaternary
1033011133101
5
Quinary
20301404412
6
Senary
2020204453
8
Octal
117053721
10
Decimal
20731857
12
Duodecimal
6b39729
16
Hexadecimal
13c57d1
20
Vigesimal
69b9ch
36
Base36
cccsx
md5
77eca3f77e8884c7933fa1d0f291e23e
sha1
e9d558732493290dd97846585d263a54bc0935b6
sha256
71e0081aecd771d26df3072aadf17ea38982f0516cd4e005a81c9a8165406b32
sha512
a1e8d387c89770172828b3eee5dd0015b1e6c53baba8871b909b6eb1c8428d401fcf93216ffafae07097c54f5cf016c85dac8f97bfd4e06440328a7710feffc3
ripemd-160
2866a3fde28c4dd407f358b4d73aba02f715d5ff
Diameter
41463714
Circumference
130262099.29295
Area
1.3502876075306E+15
Volume
3.7325292784262E+22
Surface area
5.4011504301224E+15
Circumference
130262099.29295
Perimeter
82927428
Area
429809894668449
Diagonal
29319273.34258
Surface area
2578859368010694
Volume
8.9107572734513E+21
Space diagonal
35908629.659252
Perimeter
62195571
Area
1.861131437904E+14
Altitude
17954314.829626
Surface area
1.861131437904E+14
Volume
1.0501428155941E+21
Height
9773091.1141932