1990390 is an even 7-digits composite number following 1990389
and preceding 1990391 . In scientific notation, it is written as 1.990390 × 10^6.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 796152 positive integers (up to 1990390) that are relatively prime to 1990390.
1990390 has 8 divisors, whose sum is 3582720
The reverse of 1990390 is 0930991
Previous prime number is 5
Is Prime? no
Number parity even
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million nine hundred ninety thousand three hundred ninety
Scientific notation
1.990390 × 10^6
Engineering notation
1.990390 × 10^6
Prime Factorization
2 × 5 × 199039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990390
Product of the distinct prime numbers
The prime factorization of 1990390 is 2 × 5 × 199039.
Since it has a total of 3 prime factors.
7 , 2 , 27 , 50 , 63 , 209 , 1557 , 2641 , 67642 , 91091 , 140110 , 136175 , 4542549 , 660880 , 19189561 , 4044437 , 588041544 , 110679252 , 6146353606 , 2016919360
n×2
3980780
n×3
5971170
n×4
7961560
n×5
9951950
n÷2
995195
n÷3
663463.33333333
n÷3
497597.5
n÷5
398078
n2
3961652352100
n3
7885233225096319000
n4
1.5694689358899E+25
n5
3.123855275306E+31
2 √n
1410.8118230296
3 √n
125.789983557
4 √n
37.560775058957
5 √n
18.188112684412
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
-1990389
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 1990390 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990390) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100101111011110110
3
Ternary
10202010022011
4
Quaternary
13211323312
5
Quinary
1002143030
6
Senary
110354434
8
Octal
7457366
10
Decimal
1990390
12
Duodecimal
7bba1a
16
Hexadecimal
1e5ef6
20
Vigesimal
c8fja
36
Base36
16nsm
md5
8c988cc3725a3c3b72790dfd8283f6cb
sha1
a3c93e06b5ec710ab262d81656e796a2e8aeebb4
sha256
b4bcd87b28e41c921525fa8d2231125319452328e9ddf0b68537ad1eadf24ae7
sha512
8c5787f0a695b3d04f712221796844d9ddc702192e1716e8b70e4392b2df8ba719119bd1d5cfc609cca90bbc332dbaf356492ae06c1e386288d0db22c9bf08a6
ripemd-160
06b319dfacd5040dd495419cefc89db7a48f4e6d
Diameter
3980780
Circumference
12505989.203557
Area
12445897925434
Volume
3.302958769574E+19
Surface area
49783591701736
Circumference
12505989.203557
Perimeter
7961560
Area
3961652352100
Diagonal
2814836.5324118
Surface area
23769914112600
Volume
7885233225096319000
Space diagonal
3447456.606877
Perimeter
5971170
Area
1715445788940.5
Altitude
1723728.3034385
Surface area
1715445788940.5
Volume
9.2928364745051E+17
Height
938278.84413726