20201391 is an odd 8-digits composite number following 20201390
and preceding 20201392 . In scientific notation, it is written as 2.0201391 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 11543616 positive integers (up to 20201391) that are relatively prime to 20201391.
20201391 has 8 divisors, whose sum is 28217904
The reverse of 20201391 is 19310202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred one thousand three hundred ninety-one
Scientific notation
2.0201391 × 10^7
Engineering notation
2.0201391 × 10^6
Prime Factorization
21 × 3 × 320657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20201391
Product of the distinct prime numbers
The prime factorization of 20201391 is 21 × 3 × 320657.
Since it has a total of 3 prime factors.
7 , 4 , 15 , 92 , 506 , 680 , 7152 , 6544 , 92684 , 3489 , 27554 , 464459 , 9681006 , 1188280 , 7884583 , 72920212 , 517366662 , 829896209 , 9823515670 , 1715228217
n×2
40402782
n×3
60604173
n×4
80805564
n×5
101006955
n÷2
10100695.5
n÷3
6733797
n÷3
5050347.75
n÷5
4040278.2
n2
408096198334881
n3
8.2441108681765E+21
n4
1.6654250709538E+29
n5
3.3643903039541E+36
2 √n
4494.5957549039
3 √n
272.34981933194
4 √n
67.041746359294
5 √n
28.91187482367
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
-20201390
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 20201391 can be divided by 8 positive divisors.
The sum of these divisors (counting 20201391) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011111110101111
3
Ternary
1102000100002200
4
Quaternary
1031003332233
5
Quinary
20132421031
6
Senary
2000552543
8
Octal
115037657
10
Decimal
20201391
12
Duodecimal
6922753
16
Hexadecimal
1343faf
20
Vigesimal
66539b
36
Base36
c0zhr
md5
c201ed435cd79f97b72b3aefaeba484c
sha1
9195ab14af84f34ea1cacb836e3404d18f108272
sha256
c65406df866f6cf2d19cbbf1453ac10aef46d1a53302369147ee6d86624354a6
sha512
1e9683f6e5e215f74f24f690f77693f6593b7264c308a0c398e98bd8b038369a13bd36b1e0ab76042cf6aaec27c059c518c6014be1f4410175bb0896d88ddf7d
ripemd-160
5987c092fd3391409ee029747778094b99348019
Diameter
40402782
Circumference
126929083.11579
Area
1.2820720186468E+15
Volume
3.4532850851791E+22
Surface area
5.1282880745871E+15
Circumference
126929083.11579
Perimeter
80805564
Area
408096198334881
Diagonal
28569081.131002
Surface area
2448577190009286
Volume
8.2441108681765E+21
Space diagonal
34989835.595565
Perimeter
60604173
Area
1.7671083747293E+14
Altitude
17494917.797782
Surface area
1.7671083747293E+14
Volume
9.7157778329022E+20
Height
9523027.0436673