1981008 is an even 7-digits composite number following 1981007
and preceding 1981009 . In scientific notation, it is written as 1.981008 × 10^6.
The sum of its digits is 27. It has a total of 6 prime factors and 20 positive divisors.
There are 660288 positive integers (up to 1981008) that are relatively prime to 1981008.
1981008 has 20 divisors, whose sum is 4264980
The reverse of 1981008 is 8001891
Previous prime number is 9
Is Prime? no
Number parity even
Number length 7
Sum of Digits 27
Digital Root 9
Name
one million nine hundred eighty-one thousand eight
Scientific notation
1.981008 × 10^6
Engineering notation
1.981008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 9 × 13757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
247626
Product of the distinct prime numbers
The prime factorization of 1981008 is 2 × 2 × 2 × 2 × 9 × 13757.
Since it has a total of 6 prime factors.
1 , 9 , 59 , 7 , 759 , 424 , 5494 , 9543 , 1065 , 45664 , 204427 , 522223 , 2430027 , 8742877 , 40270640 , 71579564 , 430406625 , 591527485 , 4328192482 , 7448388380
n×2
3962016
n×3
5943024
n×4
7924032
n×5
9905040
n÷2
990504
n÷3
660336
n÷3
495252
n÷5
396201.6
n2
3924392696064
n3
7774253326044352512
n4
1.540085803292E+25
n5
3.050922297008E+31
2 √n
1407.4828595759
3 √n
125.59202892062
4 √n
37.51643452643
5 √n
18.170933787549
1 , 2 , 4 , 8 , 9 , 16 , 18 , 36 , 72 , 144 , 13757 , 27514 , 55028 , 110056 , 123813 , 220112 , 247626 , 495252 , 990504 , 1981008
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981008 can be divided by 20 positive divisors.
The sum of these divisors (counting 1981008) is 1, the average is 0.05.
Base
System
Value
2
Binary
111100011101001010000
3
Ternary
10201122102200
4
Quaternary
13203221100
5
Quinary
1001343013
6
Senary
110243200
8
Octal
7435120
10
Decimal
1981008
12
Duodecimal
7b6500
16
Hexadecimal
1e3a50
20
Vigesimal
c7ca8
36
Base36
16gk0
md5
47c2a27990c57e9b3f2d588216272a45
sha1
0ebe6c87d661e4990aa0bcdde551714acc6430d0
sha256
0403ac81647af378111f5e3d177c636a0cfa37b3ab9e04cb1e674b2ab5d5a11f
sha512
8c130c512a795f76e83ddd434eb899530e842830d93bf2822969a9772bd81d8debab0e7314ae51d24536db9590e3826768d4633b68e3159cf575defdb522cae7
ripemd-160
7d2a25e183b9a0311167d1a15114f8da57623e28
Diameter
3962016
Circumference
12447040.359005
Area
12328843263756
Volume
3.2564716181663E+19
Surface area
49315373055024
Circumference
12447040.359005
Perimeter
7924032
Area
3924392696064
Diagonal
2801568.3807696
Surface area
23546356176384
Volume
7774253326044352512
Space diagonal
3431206.5062004
Perimeter
5943024
Area
1699311884608.8
Altitude
1715603.2531002
Surface area
1699311884608.8
Volume
9.1620454091801E+17
Height
933856.1269232