1981837 is an odd 7-digits composite number following 1981836
and preceding 1981838 . In scientific notation, it is written as 1.981837 × 10^6.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 1662960 positive integers (up to 1981837) that are relatively prime to 1981837.
1981837 has 8 divisors, whose sum is 2328480
The reverse of 1981837 is 7381891
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 37
Digital Root 1
Name
one million nine hundred eighty-one thousand eight hundred thirty-seven
Scientific notation
1.981837 × 10^6
Engineering notation
1.981837 × 10^6
Prime Factorization
13 × 11 × 13859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1981837
Product of the distinct prime numbers
The prime factorization of 1981837 is 13 × 11 × 13859.
Since it has a total of 3 prime factors.
8 , 2 , 40 , 26 , 678 , 574 , 2454 , 7280 , 2898 , 62877 , 13585 , 463038 , 8612453 , 7140392 , 57496243 , 65538029 , 798534183 , 304369277 , 2275845207 , 1576956190
n×2
3963674
n×3
5945511
n×4
7927348
n×5
9909185
n÷2
990918.5
n÷3
660612.33333333
n÷3
495459.25
n÷5
396367.4
n2
3927677894569
n3
7784017375538943253
n4
1.5426653643486E+25
n5
3.0573112976845E+31
2 √n
1407.7773261422
3 √n
125.60954546978
4 √n
37.52035882214
5 √n
18.172454345087
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
-1981836
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 1981837 can be divided by 8 positive divisors.
The sum of these divisors (counting 1981837) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100011110110001101
3
Ternary
10201200120101
4
Quaternary
13203312031
5
Quinary
1001404322
6
Senary
110251101
8
Octal
7436615
10
Decimal
1981837
12
Duodecimal
7b6a91
16
Hexadecimal
1e3d8d
20
Vigesimal
c7ebh
36
Base36
16h71
md5
9bc34d865657d17e9d66e3ab79f984e3
sha1
faca2b5e756cad5365e816fe39da09752e1d21bb
sha256
6237f9a6a7837ceab27264d31dc08ebc91ad0edc8d09c3feb8f105ef209bddba
sha512
8e1e017c41484426333b110247c09dc5710542a866c1113fd4b4b990a38b77c1a998562891aed3c14b92b9961706a822ce5d8b7b0b92ed6fb432808fab68991b
ripemd-160
2d9a29016a0fe7137703a71af8e8933413dc1f41
Diameter
3963674
Circumference
12452249.119625
Area
12339164019245
Volume
3.2605615736545E+19
Surface area
49356656076980
Circumference
12452249.119625
Perimeter
7927348
Area
3927677894569
Diagonal
2802740.7638128
Surface area
23566067367414
Volume
7784017375538943253
Space diagonal
3432642.3763199
Perimeter
5945511
Area
1700734417289.7
Altitude
1716321.1881599
Surface area
1700734417289.7
Volume
9.1735524518625E+17
Height
934246.92127094