20131087 is an odd 8-digits composite number following 20131086
and preceding 20131088 . In scientific notation, it is written as 2.0131087 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19513752 positive integers (up to 20131087) that are relatively prime to 20131087.
20131087 has 8 divisors, whose sum is 20756736
The reverse of 20131087 is 78013102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred thirty-one thousand eighty-seven
Scientific notation
2.0131087 × 10^7
Engineering notation
2.0131087 × 10^6
Prime Factorization
107 × 47 × 4003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131087
Product of the distinct prime numbers
The prime factorization of 20131087 is 107 × 47 × 4003.
Since it has a total of 3 prime factors.
4 , 4 , 11 , 51 , 656 , 487 , 751 , 7632 , 43405 , 8835 , 398990 , 650383 , 3930218 , 9698545 , 47739114 , 44147012 , 172525432 , 49822241 , 68192908 , 3594737502
n×2
40262174
n×3
60393261
n×4
80524348
n×5
100655435
n÷2
10065543.5
n÷3
6710362.3333333
n÷3
5032771.75
n÷5
4026217.4
n2
405260663801569
n3
8.1583376806671E+21
n4
1.6423620562489E+29
n5
3.3062533439845E+36
2 √n
4486.7679904359
3 √n
272.03351212669
4 √n
66.983341141181
5 √n
28.891723182576
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
-20131086
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 20131087 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010110100001111
3
Ternary
1101212202122211
4
Quaternary
1030302310033
5
Quinary
20123143322
6
Senary
1555251251
8
Octal
114626417
10
Decimal
20131087
12
Duodecimal
68a9b27
16
Hexadecimal
1332d0f
20
Vigesimal
65g7e7
36
Base36
bzh8v
md5
397e81d68787c81b49b462a86dd80cdb
sha1
a13fdcf95cdbcce1b3bba1784c3b1505fb5eca50
sha256
e0d3424e1034e417f4cf5c0756956ce1b71131d65ba20953fadfc69a78887b57
sha512
bb0349cadd23e7d88ef3b0243ccd60261996ad6539470b382bc411da535c1cdf3bcfdefbf469b6e6549e350cacc0a0375f4ac457b216751475ce50146dd72b7e
ripemd-160
574e18ac8a31aa64aa07ad89a3b68d9ae7f77879
Diameter
40262174
Circumference
126487350.05595
Area
1.2731639241879E+15
Volume
3.4173564964118E+22
Surface area
5.0926556967517E+15
Circumference
126487350.05595
Perimeter
80524348
Area
405260663801569
Diagonal
28469656.260713
Surface area
2431563982809414
Volume
8.1583376806671E+21
Space diagonal
34868065.495589
Perimeter
60393261
Area
1.7548301500335E+14
Altitude
17434032.747795
Surface area
1.7548301500335E+14
Volume
9.6146931620158E+20
Height
9489885.4202376