20213831 is an odd 8-digits composite number following 20213830
and preceding 20213832 . In scientific notation, it is written as 2.0213831 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 18376200 positive integers (up to 20213831) that are relatively prime to 20213831.
20213831 has 4 divisors, whose sum is 22051464
The reverse of 20213831 is 13831202
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million two hundred thirteen thousand eight hundred thirty-one
Scientific notation
2.0213831 × 10^7
Engineering notation
2.0213831 × 10^6
Prime Factorization
11 × 1837621
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20213831
Product of the distinct prime numbers
The prime factorization of 20213831 is 11 × 1837621.
Since it has a total of 2 prime factors.
3 , 4 , 50 , 16 , 919 , 36 , 8461 , 2091 , 373 , 48495 , 333608 , 31915 , 7443423 , 5036582 , 25369265 , 96476436 , 537759849 , 483401055 , 5719153231 , 3455109728
n×2
40427662
n×3
60641493
n×4
80855324
n×5
101069155
n÷2
10106915.5
n÷3
6737943.6666667
n÷3
5053457.75
n÷5
4042766.2
n2
408598963696561
n3
8.2593503989374E+21
n4
1.669531131339E+29
n5
3.3747620138126E+36
2 √n
4495.9794261095
3 √n
272.40571212568
4 √n
67.052065039859
5 √n
28.915434728662
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
-20213830
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 20213831 can be divided by 4 positive divisors.
The sum of these divisors (counting 20213831) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111000001000111
3
Ternary
1102000222011102
4
Quaternary
1031013001013
5
Quinary
20133320311
6
Senary
2001130315
8
Octal
115070107
10
Decimal
20213831
12
Duodecimal
692999b
16
Hexadecimal
1347047
20
Vigesimal
666ebb
36
Base36
c193b
md5
a1d7206bf6bef1fa6e4be709b43b79ad
sha1
76a9dedb28932e8d1f72fe89372d750d240a1ee0
sha256
e50631918d941761086540e5e7f7037bc7ee9df9219e2d867dfdd3241ebd8ab3
sha512
78558a1ec5f2f6feccd5075f464b2240c3b8a65617aabb901dc4a162d900559d187b82eb1510f7569ce9500cb96c7a8c569e4e19d5c6b6ca899871d105fef62c
ripemd-160
e94c0f4e4d374dc4a28ee87d688fd8b76ae92859
Diameter
40427662
Circumference
127007245.94101
Area
1.2836515026135E+15
Volume
3.4596686048968E+22
Surface area
5.1346060104541E+15
Circumference
127007245.94101
Perimeter
80855324
Area
408598963696561
Diagonal
28586673.947718
Surface area
2451593782179366
Volume
8.2593503989374E+21
Space diagonal
35011382.307611
Perimeter
60641493
Area
1.7692854126061E+14
Altitude
17505691.153805
Surface area
1.7692854126061E+14
Volume
9.7337377921408E+20
Height
9528891.3159059