20396987 is an odd 8-digits composite number following 20396986
and preceding 20396988 . In scientific notation, it is written as 2.0396987 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 18643968 positive integers (up to 20396987) that are relatively prime to 20396987.
20396987 has 8 divisors, whose sum is 22180704
The reverse of 20396987 is 78969302
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million three hundred ninety-six thousand nine hundred eighty-seven
Scientific notation
2.0396987 × 10^7
Engineering notation
2.0396987 × 10^6
Prime Factorization
13 × 103 × 15233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20396987
Product of the distinct prime numbers
The prime factorization of 20396987 is 13 × 103 × 15233.
Since it has a total of 3 prime factors.
1 , 9 , 12 , 34 , 537 , 846 , 18 , 9592 , 78559 , 90676 , 920006 , 703264 , 7289192 , 808943 , 88089848 , 18372529 , 259608800 , 157162845 , 4694119354 , 6402191170
n×2
40793974
n×3
61190961
n×4
81587948
n×5
101984935
n÷2
10198493.5
n÷3
6798995.6666667
n÷3
5099246.75
n÷5
4079397.4
n2
416037078678169
n3
8.4859028853166E+21
n4
1.7308685083506E+29
n5
3.5304502463538E+36
2 √n
4516.3023592315
3 √n
273.22598881578
4 √n
67.203440084801
5 √n
28.967645952436
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
-20396986
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 20396987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20396987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110011101110111011
3
Ternary
1102101021101222
4
Quaternary
1031303232323
5
Quinary
20210200422
6
Senary
2005102255
8
Octal
115635673
10
Decimal
20396987
12
Duodecimal
69b798b
16
Hexadecimal
1373bbb
20
Vigesimal
679c97
36
Base36
c56ez
md5
ba2a1d39d42e34da91b875591c62990f
sha1
529894fd213cf914a63e1c5890214023b434a7b0
sha256
57a0e08ccc747d96c37962eb39ef4c82173f1f8a759917511d140bd4677db47a
sha512
98452d91672c42168a43aabbc9804d8f1c962f2458f4b062efae8d3cbb42353b6d30bea6946a046a35f2a1d59bf0e9a18cfcdd3e89b096ba31ba8774be2897f0
ripemd-160
18f27eaa30f9f4c97773ea2826182db31db34a9e
Diameter
40793974
Circumference
128158049.02913
Area
1.3070190299963E+15
Volume
3.5545666884783E+22
Surface area
5.2280761199852E+15
Circumference
128158049.02913
Perimeter
81587948
Area
416037078678169
Diagonal
28845695.646948
Surface area
2496222472069014
Volume
8.4859028853166E+21
Space diagonal
35328617.805322
Perimeter
61190961
Area
1.8014933952578E+14
Altitude
17664308.902661
Surface area
1.8014933952578E+14
Volume
1.000073245783E+21
Height
9615231.8823159