1990487 is an odd 7-digits prime number following 1990486
and preceding 1990488 . In scientific notation, it is written as 1.990487 × 10^6.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 1990486 positive integers (up to 1990487) that are relatively prime to 1990487.
1990487 has 2 divisors, whose sum is 1990488
The reverse of 1990487 is 7840991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety thousand four hundred eighty-seven
Scientific notation
1.990487 × 10^6
Engineering notation
1.990487 × 10^6
Prime Factorization
1990487
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1990487
Product of the distinct prime numbers
The prime factorization of 1990487 is 1990487.
Since it has a total of 1 prime factors.
10 , 7 , 21 , 37 , 752 , 450 , 4240 , 1025 , 20616 , 48006 , 185023 , 746784 , 1867177 , 5414105 , 79322337 , 98028723 , 940641905 , 349397290 , 8946628079 , 8222846285
n×2
3980974
n×3
5971461
n×4
7961948
n×5
9952435
n÷2
995243.5
n÷3
663495.66666667
n÷3
497621.75
n÷5
398097.4
n2
3962038497169
n3
7886386122114431303
n4
1.5697749053049E+25
n5
3.1246165419357E+31
2 √n
1410.8461999807
3 √n
125.79202694719
4 √n
37.561232673871
5 √n
18.188289957463
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1990488
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
995244
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1410.8465543779
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999989952213
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990487 can be divided by 2 positive divisors.
The sum of these divisors (counting 1990487) is 1990488, the average is 995244.
Base
System
Value
2
Binary
111100101111101010111
3
Ternary
10202010102202
4
Quaternary
13211331113
5
Quinary
1002143422
6
Senary
110355115
8
Octal
7457527
10
Decimal
1990487
12
Duodecimal
7bba9b
16
Hexadecimal
1e5f57
20
Vigesimal
c8g47
36
Base36
16nvb
md5
9d17ff1f26f97ab8da25804a5de1cb02
sha1
9b07276a0bf739f2058b8827e0c18dd3e58b511b
sha256
e39f891da5754152280b89fd1c30b19be2ec2f8971b1e5eb5f70e8a20610ee39
sha512
bd0f50bd1caf5ab3d3807c2eeb2c036f943ef955f214df1eedd3a2785583748869f7f603a98ccb0f34d240106a2f6750546cd892502c177c7397532e6db07157
ripemd-160
04150f0bf4d42325d73c88919da4665c01a15fcd
Diameter
3980974
Circumference
12506598.672532
Area
12447111035946
Volume
3.3034416939476E+19
Surface area
49788444143784
Circumference
12506598.672532
Perimeter
7961948
Area
3962038497169
Diagonal
2814973.7111273
Surface area
23772230983014
Volume
7886386122114431303
Space diagonal
3447624.6158054
Perimeter
5971461
Area
1715612994660.1
Altitude
1723812.3079027
Surface area
1715612994660.1
Volume
9.294195176671E+17
Height
938324.57037578