1981889 is an odd 7-digits composite number following 1981888
and preceding 1981890 . In scientific notation, it is written as 1.981889 × 10^6.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 1512000 positive integers (up to 1981889) that are relatively prime to 1981889.
1981889 has 16 divisors, whose sum is 2526720
The reverse of 1981889 is 9881891
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 44
Digital Root 8
Name
one million nine hundred eighty-one thousand eight hundred eighty-nine
Scientific notation
1.981889 × 10^6
Engineering notation
1.981889 × 10^6
Prime Factorization
7 × 13 × 29 × 751
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981889
Product of the distinct prime numbers
The prime factorization of 1981889 is 7 × 13 × 29 × 751.
Since it has a total of 4 prime factors.
2 , 8 , 8 , 95 , 360 , 53 , 7719 , 5119 , 16298 , 3981 , 727115 , 707232 , 7766216 , 4795013 , 66597426 , 31728935 , 550018027 , 738818425 , 2835570354 , 7016722851
n×2
3963778
n×3
5945667
n×4
7927556
n×5
9909445
n÷2
990944.5
n÷3
660629.66666667
n÷3
495472.25
n÷5
396377.8
n2
3927884008321
n3
7784630109367298369
n4
1.5428272782824E+25
n5
3.0577124117278E+31
2 √n
1407.7957948509
3 √n
125.61064405311
4 √n
37.520604937167
5 √n
18.172549706886
1 , 7 , 13 , 29 , 91 , 203 , 377 , 751 , 2639 , 5257 , 9763 , 21779 , 68341 , 152453 , 283127 , 1981889
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981889 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981889) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100011110111000001
3
Ternary
10201200122022
4
Quaternary
13203313001
5
Quinary
1001410024
6
Senary
110251225
8
Octal
7436701
10
Decimal
1981889
12
Duodecimal
7b6b15
16
Hexadecimal
1e3dc1
20
Vigesimal
c7ee9
36
Base36
16h8h
md5
59493b02edbded3ebe9fa327dab0e391
sha1
746b29bb7854a461047f50a55203f5cba8100ba6
sha256
44cf1bec769ddee74f8d3e288193cfa7944a67a0bfba59fb85f5353337fb5eba
sha512
862ae0eb458189acfe03245348cff677b5750697fa7ca0812ad1d7618fc6fcfc7749db6f04042e440b713f7a1a422ae000994bbd955d53cbd4fffcf02c43dcdb
ripemd-160
7ce6c3728e228e0c765e819326d77c8b06d3accf
Diameter
3963778
Circumference
12452575.845261
Area
12339811544694
Volume
3.2608182350003E+19
Surface area
49359246178776
Circumference
12452575.845261
Perimeter
7927556
Area
3927884008321
Diagonal
2802814.3029181
Surface area
23567304049926
Volume
7784630109367298369
Space diagonal
3432732.4429619
Perimeter
5945667
Area
1700823667162.3
Altitude
1716366.2214809
Surface area
1700823667162.3
Volume
9.1742745656043E+17
Height
934271.43430602