20121811 is an odd 8-digits prime number following 20121810
and preceding 20121812 . In scientific notation, it is written as 2.0121811 × 10^7.
The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors.
There are 20121810 positive integers (up to 20121811) that are relatively prime to 20121811.
20121811 has 2 divisors, whose sum is 20121812
The reverse of 20121811 is 11812102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred twenty-one thousand eight hundred eleven
Scientific notation
2.0121811 × 10^7
Engineering notation
2.0121811 × 10^6
Prime Factorization
20121811
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20121811
Product of the distinct prime numbers
The prime factorization of 20121811 is 20121811.
Since it has a total of 1 prime factors.
6 , 8 , 69 , 93 , 52 , 650 , 5949 , 6556 , 14389 , 10423 , 249558 , 421633 , 502214 , 789124 , 70671221 , 7881876 , 455547498 , 609731231 , 9725664960 , 9804336144
n×2
40243622
n×3
60365433
n×4
80487244
n×5
100609055
n÷2
10060905.5
n÷3
6707270.3333333
n÷3
5030452.75
n÷5
4024362.2
n2
404887277919721
n3
8.1470652826051E+21
n4
1.6393370782124E+29
n5
3.2986430853082E+36
2 √n
4485.7341651061
3 √n
271.99172318384
4 √n
66.975623663435
5 √n
28.889060146711
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20121812
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10060906
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4485.7342765706
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006054
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121811 can be divided by 2 positive divisors.
The sum of these divisors (counting 20121811) is 20121812, the average is 10060906.
Base
System
Value
2
Binary
1001100110000100011010011
3
Ternary
1101212021221021
4
Quaternary
1030300203103
5
Quinary
20122344221
6
Senary
1555140311
8
Octal
114604323
10
Decimal
20121811
12
Duodecimal
68a4697
16
Hexadecimal
13308d3
20
Vigesimal
65f4ab
36
Base36
bza37
md5
ea37c479307aba1d63cbeb473988b485
sha1
33c40a069026f39cbb01cc8986b0e48d92784309
sha256
522f9f985a6608a4f10c692d0fa692e46e1afca1e443d5d76fd6b19d8bb20574
sha512
4d819dc068bb4e5cf732475ef2ed5bb84f637078a76cb83e438b455fb641309bcac1e0ec2fbb3401af009b104ce17d365a4ff959955efcf4b42c1b2a45f473be
ripemd-160
f15f3920aae1641584061e592fca252a17a9b0cc
Diameter
40243622
Circumference
126429067.22904
Area
1.2719908978446E+15
Volume
3.4126347253532E+22
Surface area
5.0879635913783E+15
Circumference
126429067.22904
Perimeter
80487244
Area
404887277919721
Diagonal
28456538.015708
Surface area
2429323667518326
Volume
8.1470652826051E+21
Space diagonal
34851998.992298
Perimeter
60365433
Area
1.753213341738E+14
Altitude
17425999.496149
Surface area
1.753213341738E+14
Volume
9.6014085134993E+20
Height
9485512.6719027