1990287 is an odd 7-digits composite number following 1990286
and preceding 1990288 . In scientific notation, it is written as 1.990287 × 10^6.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 1224720 positive integers (up to 1990287) that are relatively prime to 1990287.
1990287 has 12 divisors, whose sum is 3096184
The reverse of 1990287 is 7820991
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 36
Digital Root 9
Name
one million nine hundred ninety thousand two hundred eighty-seven
Scientific notation
1.990287 × 10^6
Engineering notation
1.990287 × 10^6
Prime Factorization
3 × 3 × 13 × 17011
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
663429
Product of the distinct prime numbers
The prime factorization of 1990287 is 3 × 3 × 13 × 17011.
Since it has a total of 4 prime factors.
4 , 7 , 27 , 8 , 374 , 75 , 4192 , 6756 , 87771 , 69972 , 934602 , 394536 , 7162594 , 4911305 , 3186594 , 39157382 , 783648614 , 3826654 , 7405057698 , 7912771648
n×2
3980574
n×3
5970861
n×4
7961148
n×5
9951435
n÷2
995143.5
n÷3
663429
n÷3
497571.75
n÷5
398057.4
n2
3961242342369
n3
7884009137866569903
n4
1.5691440894977E+25
n5
3.1230470824541E+31
2 √n
1410.7753187521
3 √n
125.78781369886
4 √n
37.560289119655
5 √n
18.187924438451
1 , 3 , 9 , 13 , 39 , 117 , 17011 , 51033 , 153099 , 221143 , 663429 , 1990287
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990286
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990287 can be divided by 12 positive divisors.
The sum of these divisors (counting 1990287) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100101111010001111
3
Ternary
10202010011100
4
Quaternary
13211322033
5
Quinary
1002142122
6
Senary
110354143
8
Octal
7457217
10
Decimal
1990287
12
Duodecimal
7bb953
16
Hexadecimal
1e5e8f
20
Vigesimal
c8fe7
36
Base36
16npr
md5
c92b0301c6aca1e8202552c2723d099d
sha1
71daaf49f54eeb926b7dbf329c8573e36059408d
sha256
9a010e3e3b7ff6af36d9eb10c18e1177f2d6e071e18297821d5f2bc2cab704cf
sha512
1d769787983b0e4a4a3e19bee8f5ee2b273847a33d2498b3867a87694272a30da271f2d09e87ba744e2c8cfa246213c66d85cd93fff49f16a0c339099a0044ad
ripemd-160
0da2966fa294c5cd279f0b3f115bfc482fa65571
Diameter
3980574
Circumference
12505342.035471
Area
12444609841875
Volume
3.3024460251142E+19
Surface area
49778439367501
Circumference
12505342.035471
Perimeter
7961148
Area
3961242342369
Diagonal
2814690.8684149
Surface area
23767454054214
Volume
7884009137866569903
Space diagonal
3447278.2056438
Perimeter
5970861
Area
1715268249519.1
Altitude
1723639.1028219
Surface area
1715268249519.1
Volume
9.2913938738703E+17
Height
938230.28947162