1981801 is an odd 7-digits composite number following 1981800
and preceding 1981802 . In scientific notation, it is written as 1.981801 × 10^6.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 1972692 positive integers (up to 1981801) that are relatively prime to 1981801.
1981801 has 4 divisors, whose sum is 1990912
The reverse of 1981801 is 1081891
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million nine hundred eighty-one thousand eight hundred one
Scientific notation
1.981801 × 10^6
Engineering notation
1.981801 × 10^6
Prime Factorization
223 × 8887
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1981801
Product of the distinct prime numbers
The prime factorization of 1981801 is 223 × 8887.
Since it has a total of 2 prime factors.
9 , 4 , 59 , 66 , 440 , 259 , 8809 , 3268 , 40636 , 7753 , 94422 , 482782 , 9968667 , 1204232 , 60450109 , 75863407 , 580373336 , 554768843 , 1012675132 , 3932143021
n×2
3963602
n×3
5945403
n×4
7927204
n×5
9909005
n÷2
990900.5
n÷3
660600.33333333
n÷3
495450.25
n÷5
396360.2
n2
3927535203601
n3
7783593194031665401
n4
1.5425532775525E+25
n5
3.0570336280069E+31
2 √n
1407.7645399711
3 √n
125.60878490084
4 √n
37.520188431977
5 √n
18.172388324208
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981800
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981801 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981801) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100011110101101001
3
Ternary
10201200112001
4
Quaternary
13203311221
5
Quinary
1001404201
6
Senary
110251001
8
Octal
7436551
10
Decimal
1981801
12
Duodecimal
7b6a61
16
Hexadecimal
1e3d69
20
Vigesimal
c7ea1
36
Base36
16h61
md5
34a7bee9a9b957d9a887b7d4b89885f9
sha1
c5034f0878d4a9d004bb9f933c2566d9b41192d1
sha256
5d43e37d24d6322d6fea938241abfc30a3e79018458bfdd1f422b4857b26994a
sha512
1e495e4395ef38f2e0d4f1da2d76aeb3940378b8e75b36fb9b70768d3995bbdb4a3c116b5e6985ec5b9a46e1eb9b2a01799d3153f7b14286662151b52e0f9889
ripemd-160
8a0cb00b248ff3601611161e56eb3b89908d3d5e
Diameter
3963602
Circumference
12452022.924954
Area
12338715742348
Volume
3.2603838929202E+19
Surface area
49354862969393
Circumference
12452022.924954
Perimeter
7927204
Area
3927535203601
Diagonal
2802689.8521246
Surface area
23565211221606
Volume
7783593194031665401
Space diagonal
3432580.0224908
Perimeter
5945403
Area
1700672630288.1
Altitude
1716290.0112454
Surface area
1700672630288.1
Volume
9.1730525491621E+17
Height
934229.95070819