20091387 is an odd 8-digits composite number following 20091386
and preceding 20091388 . In scientific notation, it is written as 2.0091387 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13174560 positive integers (up to 20091387) that are relatively prime to 20091387.
20091387 has 8 divisors, whose sum is 27227920
The reverse of 20091387 is 78319002
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million ninety-one thousand three hundred eighty-seven
Scientific notation
2.0091387 × 10^7
Engineering notation
2.0091387 × 10^6
Prime Factorization
3 × 61 × 109789
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20091387
Product of the distinct prime numbers
The prime factorization of 20091387 is 3 × 61 × 109789.
Since it has a total of 3 prime factors.
7 , 8 , 27 , 28 , 722 , 178 , 7066 , 8189 , 77142 , 9268 , 723558 , 156582 , 1658166 , 8472165 , 28551177 , 32641881 , 27336238 , 918559677 , 2891861971 , 2612309634
n×2
40182774
n×3
60274161
n×4
80365548
n×5
100456935
n÷2
10045693.5
n÷3
6697129
n÷3
5022846.75
n÷5
4018277.4
n2
403663831583769
n3
8.1101662582523E+21
n4
1.6294448892889E+29
n5
3.2737807865875E+36
2 √n
4482.3416871095
3 √n
271.85457101089
4 √n
66.950292658879
5 √n
28.8803188578
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
-20091386
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 20091387 can be divided by 8 positive divisors.
The sum of these divisors (counting 20091387) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101001000111111011
3
Ternary
1101210202012110
4
Quaternary
1030221013323
5
Quinary
20120411022
6
Senary
1554343403
8
Octal
114510773
10
Decimal
20091387
12
Duodecimal
688ab63
16
Hexadecimal
13291fb
20
Vigesimal
65b897
36
Base36
bymm3
md5
d763908f59dd1b7ff6f1380740117c26
sha1
70615e76fd2c507b13b18d5dd078dc0b71800479
sha256
f38aeb4017c7feba9ff166543be3e53dea4af2cfb663c76a4b0686eb8b2c1c7c
sha512
63938cffa6c3f13f84a617ae87830c0e2ea1c311d34849015eed1b7993950e4b2b92d00240a107f0fbe730421a9c2ce8ccd01c53291885a4db7fbcf75d66c4f8
ripemd-160
f3f20cd0a1512b163adce3cd598dea74aef9ce8f
Diameter
40182774
Circumference
126237907.59926
Area
1.2681473278235E+15
Volume
3.3971784981756E+22
Surface area
5.0725893112939E+15
Circumference
126237907.59926
Perimeter
80365548
Area
403663831583769
Diagonal
28413511.982286
Surface area
2421982989502614
Volume
8.1101662582523E+21
Space diagonal
34799303.078529
Perimeter
60274161
Area
1.7479156637025E+14
Altitude
17399651.539264
Surface area
1.7479156637025E+14
Volume
9.5579225962676E+20
Height
9471170.6607622