1021808 is an even 7-digits composite number following 1021807
and preceding 1021809 . In scientific notation, it is written as 1.021808 × 10^6.
The sum of its digits is 20. It has a total of 5 prime factors and 10 positive divisors.
There are 510896 positive integers (up to 1021808) that are relatively prime to 1021808.
1021808 has 10 divisors, whose sum is 1979784
The reverse of 1021808 is 8081201
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 20
Digital Root 2
Name
one million twenty-one thousand eight hundred eight
Scientific notation
1.021808 × 10^6
Engineering notation
1.021808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 63863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
127726
Product of the distinct prime numbers
The prime factorization of 1021808 is 2 × 2 × 2 × 2 × 63863.
Since it has a total of 5 prime factors.
4 , 5 , 55 , 36 , 643 , 990 , 1194 , 7183 , 47627 , 12404 , 82822 , 709146 , 1434184 , 1738841 , 65152870 , 27416174 , 642018945 , 397730058 , 2706871361 , 8599901864
n×2
2043616
n×3
3065424
n×4
4087232
n×5
5109040
n÷2
510904
n÷3
340602.66666667
n÷3
255452
n÷5
204361.6
n2
1044091588864
n3
1066861138233946112
n4
1.0901272459366E+24
n5
1.1139007409159E+30
2 √n
1010.845190917
3 √n
100.72171211894
4 √n
31.793791703994
5 √n
15.917463391778
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1021807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1021808 can be divided by 10 positive divisors.
The sum of these divisors (counting 1021808) is 1, the average is 0.1.
Base
System
Value
2
Binary
11111001011101110000
3
Ternary
1220220122202
4
Quaternary
3321131300
5
Quinary
230144213
6
Senary
33522332
8
Octal
3713560
10
Decimal
1021808
12
Duodecimal
4133a8
16
Hexadecimal
f9770
20
Vigesimal
67ea8
36
Base36
lwfk
md5
b56538b5c75b4729f85cea3ff30a480a
sha1
ef0a3f069f115895adfa73a6e45155aa737d2c18
sha256
0657fe0e68d45f5d88d551be88da940683b5e2a30f3cf06ab5e5190ac95f0548
sha512
6af43119548179fb5fbc1ec135cdc3ea011203b2e2c3fecc4e985574ce6658ca6d1a30375311fc05cdffcd5529a2f26811cba501194583fc9ad92b30ba4a5b2a
ripemd-160
937e089dbdc4bee80619532fed055fe10ad90ee6
Diameter
2043616
Circumference
6420209.0123586
Area
3280110465250
Volume
4.4688574857016E+18
Surface area
13120441861000
Circumference
6420209.0123586
Perimeter
4087232
Area
1044091588864
Diagonal
1445054.7317413
Surface area
6264549533184
Volume
1066861138233946112
Space diagonal
1769823.3715803
Perimeter
3065424
Area
452104919916.94
Altitude
884911.68579017
Surface area
452104919916.94
Volume
1.2573079090494E+17
Height
481684.91058044