1981566 is an even 7-digits composite number following 1981565
and preceding 1981567 . In scientific notation, it is written as 1.981566 × 10^6.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 656496 positive integers (up to 1981566) that are relatively prime to 1981566.
1981566 has 24 divisors, whose sum is 4319640
The reverse of 1981566 is 6651891
Previous prime number is 389
Is Prime? no
Number parity even
Number length 7
Sum of Digits 36
Digital Root 9
Name
one million nine hundred eighty-one thousand five hundred sixty-six
Scientific notation
1.981566 × 10^6
Engineering notation
1.981566 × 10^6
Prime Factorization
2 × 3 × 3 × 389 × 283
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
660522
Product of the distinct prime numbers
The prime factorization of 1981566 is 2 × 3 × 3 × 389 × 283.
Since it has a total of 5 prime factors.
9 , 1 , 32 , 5 , 736 , 129 , 22 , 6582 , 32999 , 99697 , 612794 , 644161 , 6459580 , 1797761 , 95074542 , 20662543 , 547829171 , 716877723 , 9124086427 , 2375906106
n×2
3963132
n×3
5944698
n×4
7926264
n×5
9907830
n÷2
990783
n÷3
660522
n÷3
495391.5
n÷5
396313.2
n2
3926603812356
n3
7780824610035029496
n4
1.5418217499209E+25
n5
3.0552215577037E+31
2 √n
1407.6810718341
3 √n
125.60381984948
4 √n
37.519076105817
5 √n
18.171957331002
1 , 2 , 3 , 6 , 9 , 18 , 283 , 389 , 566 , 778 , 849 , 1167 , 1698 , 2334 , 2547 , 3501 , 5094 , 7002 , 110087 , 220174 , 330261 , 660522 , 990783 , 1981566
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
-1981565
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 1981566 can be divided by 24 positive divisors.
The sum of these divisors (counting 1981566) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111100011110001111110
3
Ternary
10201200012100
4
Quaternary
13203301332
5
Quinary
1001402231
6
Senary
110245530
8
Octal
7436176
10
Decimal
1981566
12
Duodecimal
7b68a6
16
Hexadecimal
1e3c7e
20
Vigesimal
c7di6
36
Base36
16gzi
md5
23ea6efff8519c584ef4879657359870
sha1
d0e7db37237690577c81bf9e5a143275e0b00ad7
sha256
17f792cddacdd4cd8f6750f0b78c916398d4f61edd48f0d434f335e599972e9a
sha512
286e7ffa840c6f56ff2cff77ba2e06ccafa6eb148037a5dc80081ce102cefb8a3e4855032b9f0207333c6df5a33b0e9ff3b20e0fb334755913211ffd5e231e16
ripemd-160
528ca4caa276593f5210beed87c298c2f7b5d02d
Diameter
3963132
Circumference
12450546.376407
Area
12335789690455
Volume
3.2592241911676E+19
Surface area
49343158761821
Circumference
12450546.376407
Perimeter
7926264
Area
3926603812356
Diagonal
2802357.5119374
Surface area
23559622874136
Volume
7780824610035029496
Space diagonal
3432172.990551
Perimeter
5944698
Area
1700269326048.6
Altitude
1716086.4952755
Surface area
1700269326048.6
Volume
9.1697897416316E+17
Height
934119.1706458