20131245 is an odd 8-digits composite number following 20131244
and preceding 20131246 . In scientific notation, it is written as 2.0131245 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 10389600 positive integers (up to 20131245) that are relatively prime to 20131245.
20131245 has 8 divisors, whose sum is 21705728
The reverse of 20131245 is 54213102
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred thirty-one thousand two hundred forty-five
Scientific notation
2.0131245 × 10^7
Engineering notation
2.0131245 × 10^6
Prime Factorization
93 × 15 × 14431
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131245
Product of the distinct prime numbers
The prime factorization of 20131245 is 93 × 15 × 14431.
Since it has a total of 3 prime factors.
9 , 4 , 3 , 57 , 373 , 464 , 5637 , 6708 , 11515 , 50283 , 1419 , 998884 , 2546572 , 3879404 , 38446472 , 76417117 , 949579180 , 209611704 , 6750397091 , 5094812070
n×2
40262490
n×3
60393735
n×4
80524980
n×5
100656225
n÷2
10065622.5
n÷3
6710415
n÷3
5032811.25
n÷5
4026249
n2
405267025250025
n3
8.1585297757294E+21
n4
1.64241361755E+29
n5
3.3063830926236E+36
2 √n
4486.7855977303
3 √n
272.03422381508
4 √n
66.983472571451
5 √n
28.891768534105
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
-20131244
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 20131245 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010110110101101
3
Ternary
1101212202212200
4
Quaternary
1030302312231
5
Quinary
20123144440
6
Senary
1555252113
8
Octal
114626655
10
Decimal
20131245
12
Duodecimal
68aa039
16
Hexadecimal
1332dad
20
Vigesimal
65g825
36
Base36
bzhd9
md5
e9237ea25e645026ec71ed5ba846b651
sha1
00e3c349ec79b54e5613f9a3549b15797e186a3d
sha256
9f8cdebb3e102f599e2447c238e64f40ead53e8da75130c8b7eb3e85112ccd9f
sha512
a3f7e600bad55a5f3357c89215bd1fb632d2db1ded1f58fbbdb2faad5aa8f0f42f33ca09fb4e8670394c3a9f8bdef2571813b703a1af7a565901451433bc1b25
ripemd-160
f4c5d06635a135f227ac101b8ccca3e8bbf33230
Diameter
40262490
Circumference
126488342.79923
Area
1.2731839092677E+15
Volume
3.4174369610034E+22
Surface area
5.0927356370707E+15
Circumference
126488342.79923
Perimeter
80524980
Area
405267025250025
Diagonal
28469879.706456
Surface area
2431602151500150
Volume
8.1585297757294E+21
Space diagonal
34868339.159617
Perimeter
60393735
Area
1.7548576959134E+14
Altitude
17434169.579808
Surface area
1.7548576959134E+14
Volume
9.6149195482177E+20
Height
9489959.9021519