1981804 is an even 7-digits composite number following 1981803
and preceding 1981805 . In scientific notation, it is written as 1.981804 × 10^6.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 887040 positive integers (up to 1981804) that are relatively prime to 1981804.
1981804 has 24 divisors, whose sum is 3841488
The reverse of 1981804 is 4081891
Previous prime number is 73
Is Prime? no
Number parity even
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million nine hundred eighty-one thousand eight hundred four
Scientific notation
1.981804 × 10^6
Engineering notation
1.981804 × 10^6
Prime Factorization
2 × 2 × 11 × 73 × 617
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
990902
Product of the distinct prime numbers
The prime factorization of 1981804 is 2 × 2 × 11 × 73 × 617.
Since it has a total of 5 prime factors.
6 , 8 , 17 , 84 , 660 , 827 , 5286 , 5489 , 62446 , 33991 , 969697 , 44527 , 115026 , 649864 , 93160948 , 76674405 , 582254424 , 855120472 , 6185749461 , 2995126930
n×2
3963608
n×3
5945412
n×4
7927216
n×5
9909020
n÷2
990902
n÷3
660601.33333333
n÷3
495451
n÷5
396360.8
n2
3927547094416
n3
7783628541902006464
n4
1.5425626178856E+25
n5
3.0570567663761E+31
2 √n
1407.7656054898
3 √n
125.60884828194
4 √n
37.520202631246
5 √n
18.172393825984
1 , 2 , 4 , 11 , 22 , 44 , 73 , 146 , 292 , 617 , 803 , 1234 , 1606 , 2468 , 3212 , 6787 , 13574 , 27148 , 45041 , 90082 , 180164 , 495451 , 990902 , 1981804
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981803
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981804 can be divided by 24 positive divisors.
The sum of these divisors (counting 1981804) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111100011110101101100
3
Ternary
10201200112011
4
Quaternary
13203311230
5
Quinary
1001404204
6
Senary
110251004
8
Octal
7436554
10
Decimal
1981804
12
Duodecimal
7b6a64
16
Hexadecimal
1e3d6c
20
Vigesimal
c7ea4
36
Base36
16h64
md5
77249a243471cb2ee34082509804d8df
sha1
9669c422462d7014233e1341fff17086036652cd
sha256
44d4a0b21621fc1a7e1f373bea832ac9243c645e3a07560d7fed5b3b65f385fc
sha512
7272c63fbb81039bff7ecaaf88dec64ad7687d3e54f05c6f08a2db0d81c1a8534044a94bb43fd70b2110ad08135cc2f1746d0a5190b25b612e694fd2ab6eb8dc
ripemd-160
8a9a33b029d1ccc53a13c6b88bc901508067f72b
Diameter
3963608
Circumference
12452041.77451
Area
12338753098445
Volume
3.2603986994015E+19
Surface area
49355012393781
Circumference
12452041.77451
Perimeter
7927216
Area
3927547094416
Diagonal
2802694.0947652
Surface area
23565282566496
Volume
7783628541902006464
Space diagonal
3432585.2186432
Perimeter
5945412
Area
1700677779162
Altitude
1716292.6093216
Surface area
1700677779162
Volume
9.1730942070268E+17
Height
934231.36492175