20731187 is an odd 8-digits prime number following 20731186
and preceding 20731188 . In scientific notation, it is written as 2.0731187 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20731186 positive integers (up to 20731187) that are relatively prime to 20731187.
20731187 has 2 divisors, whose sum is 20731188
The reverse of 20731187 is 78113702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred thirty-one thousand one hundred eighty-seven
Scientific notation
2.0731187 × 10^7
Engineering notation
2.0731187 × 10^6
Prime Factorization
20731187
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20731187
Product of the distinct prime numbers
The prime factorization of 20731187 is 20731187.
Since it has a total of 1 prime factors.
1 , 2 , 68 , 18 , 6 , 749 , 2458 , 5051 , 89889 , 67247 , 168899 , 209915 , 2292244 , 9522354 , 91098558 , 46274464 , 594407738 , 335939666 , 6529715159 , 3394710990
n×2
41462374
n×3
62193561
n×4
82924748
n×5
103655935
n÷2
10365593.5
n÷3
6910395.6666667
n÷3
5182796.75
n÷5
4146237.4
n2
429782114428969
n3
8.9098933834824E+21
n4
1.8471266588304E+29
n5
3.8293128176897E+36
2 √n
4553.1513262794
3 √n
274.71016074377
4 √n
67.477042957434
5 √n
29.061955525234
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20731188
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10365594
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4553.1514360935
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999903527
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20731187 can be divided by 2 positive divisors.
The sum of these divisors (counting 20731187) is 20731188, the average is 10365594.
Base
System
Value
2
Binary
1001111000101010100110011
3
Ternary
1110000020211202
4
Quaternary
1033011110303
5
Quinary
20301344222
6
Senary
2020201415
8
Octal
117052463
10
Decimal
20731187
12
Duodecimal
6b3926b
16
Hexadecimal
13c5533
20
Vigesimal
69b7j7
36
Base36
cccab
md5
ea9005ca530cd35c15f16cdffcba15c4
sha1
1c1477ef53f663e5991bdfdcbc1013b26f006ecd
sha256
16ded5a2e6dad7d94205f0b61787229dcef48bd9570256c48c30c9c8de2ee595
sha512
938562345d927f6fdc31c6ef5d5dbd7d59031bbd07b146dffa45bcf880571eec0a970654713de0cf3e8a4f175922da1d25c1403fec465088189e39e2656d6652
ripemd-160
411a8889463b68cb2b814564afc7ed4fec0cd96e
Diameter
41462374
Circumference
130257889.55879
Area
1.3502003333343E+15
Volume
3.7321674130422E+22
Surface area
5.4008013333373E+15
Circumference
130257889.55879
Perimeter
82924748
Area
429782114428969
Diagonal
29318325.819493
Surface area
2578692686573814
Volume
8.9098933834824E+21
Space diagonal
35907469.185211
Perimeter
62193561
Area
1.8610111459384E+14
Altitude
17953734.592606
Surface area
1.8610111459384E+14
Volume
1.0500410051849E+21
Height
9772775.2731643