20131285 is an odd 8-digits composite number following 20131284
and preceding 20131286 . In scientific notation, it is written as 2.0131285 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 16105024 positive integers (up to 20131285) that are relatively prime to 20131285.
20131285 has 4 divisors, whose sum is 24157548
The reverse of 20131285 is 58213102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred thirty-one thousand two hundred eighty-five
Scientific notation
2.0131285 × 10^7
Engineering notation
2.0131285 × 10^6
Prime Factorization
5 × 4026257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131285
Product of the distinct prime numbers
The prime factorization of 20131285 is 5 × 4026257.
Since it has a total of 2 prime factors.
8 , 3 , 96 , 38 , 854 , 337 , 9612 , 4510 , 65212 , 87566 , 245606 , 371862 , 9728081 , 5838777 , 54631974 , 18770075 , 653022861 , 197389834 , 7864536704 , 6592185358
n×2
40262570
n×3
60393855
n×4
80525140
n×5
100656425
n÷2
10065642.5
n÷3
6710428.3333333
n÷3
5032821.25
n÷5
4026257
n2
405268635751225
n3
8.1585784078691E+21
n4
1.6424266712366E+29
n5
3.3064159410265E+36
2 √n
4486.7900552622
3 √n
272.03440398876
4 √n
66.983505844814
5 √n
28.89178001546
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131284
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131285 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131285) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010110111010101
3
Ternary
1101212202221011
4
Quaternary
1030302313111
5
Quinary
20123200120
6
Senary
1555252221
8
Octal
114626725
10
Decimal
20131285
12
Duodecimal
68aa071
16
Hexadecimal
1332dd5
20
Vigesimal
65g845
36
Base36
bzhed
md5
a2cf11006490d2bc0051909a85b910e5
sha1
d6309f677698017bd0a0c1af9d8589f859ec1915
sha256
20ed9a693f2cfd0d5a5f9614b08c463c7907d843f3258239b224c469fa587a10
sha512
ba105d3dce6348d58802571da243fc8ebdd2c6474da4e85fc1785ffcf3a8be0356e76384cb1d077de6a3a67fa521224239d4ebe074e0cab7dd15a7ad20f155bf
ripemd-160
a457f899065d85c2bd1ac1806e8eb4456bbec501
Diameter
40262570
Circumference
126488594.12664
Area
1.2731889688064E+15
Volume
3.4174573319864E+22
Surface area
5.0927558752256E+15
Circumference
126488594.12664
Perimeter
80525140
Area
405268635751225
Diagonal
28469936.274998
Surface area
2431611814507350
Volume
8.1585784078691E+21
Space diagonal
34868408.441649
Perimeter
60393855
Area
1.7548646695881E+14
Altitude
17434204.220825
Surface area
1.7548646695881E+14
Volume
9.614976861744E+20
Height
9489978.7583327