1990388 is an even 7-digits composite number following 1990387
and preceding 1990389 . In scientific notation, it is written as 1.990388 × 10^6.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 995192 positive integers (up to 1990388) that are relatively prime to 1990388.
1990388 has 6 divisors, whose sum is 3483186
The reverse of 1990388 is 8830991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety thousand three hundred eighty-eight
Scientific notation
1.990388 × 10^6
Engineering notation
1.990388 × 10^6
Prime Factorization
2 × 2 × 497597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
995194
Product of the distinct prime numbers
The prime factorization of 1990388 is 2 × 2 × 497597.
Since it has a total of 3 prime factors.
6 , 9 , 65 , 63 , 188 , 73 , 1669 , 7043 , 32495 , 54524 , 617159 , 902541 , 5002614 , 2742579 , 86086684 , 58214191 , 422493932 , 268718074 , 4248740504 , 5098734086
n×2
3980776
n×3
5971164
n×4
7961552
n×5
9951940
n÷2
995194
n÷3
663462.66666667
n÷3
497597
n÷5
398077.6
n2
3961644390544
n3
7885209455206091072
n4
1.5694626277129E+25
n5
3.1238395806482E+31
2 √n
1410.8111142176
3 √n
125.78994142454
4 √n
37.560765623422
5 √n
18.188109029224
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990388 can be divided by 6 positive divisors.
The sum of these divisors (counting 1990388) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111100101111011110100
3
Ternary
10202010022002
4
Quaternary
13211323310
5
Quinary
1002143023
6
Senary
110354432
8
Octal
7457364
10
Decimal
1990388
12
Duodecimal
7bba18
16
Hexadecimal
1e5ef4
20
Vigesimal
c8fj8
36
Base36
16nsk
md5
161426500fa4dbd3fe712983c930d9bb
sha1
6611abeba0ea704c14e556982f9ca07c8aaad93e
sha256
c9c7565b4b99689d11cb91aecc85a7b7ebc5e349e4abcea2af17c4c80c3493a6
sha512
6ca67aee9e67f9d2ebec948c10bdbb8f7acc9ba68f48c9227ddd72aab77b94964d4536333688d218b64f9b830869cae2bfce3d07e34c019b3a558a8eb540aaf9
ripemd-160
09f0abcbea40d5ac8b5cecd5bff5fb92ea4730ba
Diameter
3980776
Circumference
12505976.637187
Area
12445872913468
Volume
3.3029488128656E+19
Surface area
49783491653873
Circumference
12505976.637187
Perimeter
7961552
Area
3961644390544
Diagonal
2814833.7039847
Surface area
23769866343264
Volume
7885209455206091072
Space diagonal
3447453.1427754
Perimeter
5971164
Area
1715442341485.6
Altitude
1723726.5713877
Surface area
1715442341485.6
Volume
9.2928084614208E+17
Height
938277.90132822