1820145 is an odd 7-digits composite number following 1820144
and preceding 1820146 . In scientific notation, it is written as 1.820145 × 10^6.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 970736 positive integers (up to 1820145) that are relatively prime to 1820145.
1820145 has 8 divisors, whose sum is 2912256
The reverse of 1820145 is 5410281
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 21
Digital Root 3
Name
one million eight hundred twenty thousand one hundred forty-five
Scientific notation
1.820145 × 10^6
Engineering notation
1.820145 × 10^6
Prime Factorization
3 × 5 × 121343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1820145
Product of the distinct prime numbers
The prime factorization of 1820145 is 3 × 5 × 121343.
Since it has a total of 3 prime factors.
8 , 9 , 59 , 50 , 606 , 358 , 3766 , 9689 , 73121 , 55162 , 875077 , 756371 , 123464 , 1511885 , 18222537 , 99956200 , 215383567 , 833186385 , 5747494080 , 9736061648
n×2
3640290
n×3
5460435
n×4
7280580
n×5
9100725
n÷2
910072.5
n÷3
606715
n÷3
455036.25
n÷5
364029
n2
3312927821025
n3
6030009008799548625
n4
1.0975490747321E+25
n5
1.9976984606283E+31
2 √n
1349.1274958283
3 √n
122.09615728284
4 √n
36.730470944821
5 √n
17.865747733185
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
-1820144
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 1820145 can be divided by 8 positive divisors.
The sum of these divisors (counting 1820145) is 1, the average is 0.125.
Base
System
Value
2
Binary
110111100010111110001
3
Ternary
10102110202210
4
Quaternary
12330113301
5
Quinary
431221040
6
Senary
103002333
8
Octal
6742761
10
Decimal
1820145
12
Duodecimal
7393a9
16
Hexadecimal
1bc5f1
20
Vigesimal
b7a75
36
Base36
130fl
md5
4a08f83320373303c00101a8893d9f3e
sha1
01d6c0c73a1b2647329bc1f13e14e427c7a853e7
sha256
aa79da808d2efea423d3ef4eb3854b1d51ed7063433c38e5997ee5b928d3af44
sha512
fd0e518763cadcac41dcbfc6abd4f80c7a78d0e50bd79e4ac686b3f94a71be12fde02303416d8b975e8a40b668b8e53ac06239fab976013c51a6ede8f4fb061f
ripemd-160
911671f5dc2e05108b4ee263283f018e69c77062
Diameter
3640290
Circumference
11436308.320936
Area
10407869704405
Volume
2.5258442670833E+19
Surface area
41631478817622
Circumference
11436308.320936
Perimeter
7280580
Area
3312927821025
Diagonal
2574073.7444856
Surface area
19877566926150
Volume
6030009008799548625
Space diagonal
3152583.6171425
Perimeter
5460435
Area
1434539826955.9
Altitude
1576291.8085712
Surface area
1434539826955.9
Volume
7.1064337678969E+17
Height
858024.58149519