1981330 is an even 7-digits composite number following 1981329
and preceding 1981331 . In scientific notation, it is written as 1.981330 × 10^6.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 731520 positive integers (up to 1981330) that are relatively prime to 1981330.
1981330 has 16 divisors, whose sum is 3840984
The reverse of 1981330 is 0331891
Previous prime number is 13
Is Prime? no
Number parity even
Number length 7
Sum of Digits 25
Digital Root 7
Name
one million nine hundred eighty-one thousand three hundred thirty
Scientific notation
1.981330 × 10^6
Engineering notation
1.981330 × 10^6
Prime Factorization
2 × 5 × 13 × 15241
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981330
Product of the distinct prime numbers
The prime factorization of 1981330 is 2 × 5 × 13 × 15241.
Since it has a total of 4 prime factors.
1 , 4 , 43 , 40 , 760 , 921 , 4459 , 4825 , 95140 , 88 , 238962 , 658699 , 4484805 , 3708638 , 56408107 , 37806638 , 636345903 , 110849567 , 7959542114 , 1902736957
n×2
3962660
n×3
5943990
n×4
7925320
n×5
9906650
n÷2
990665
n÷3
660443.33333333
n÷3
495332.5
n÷5
396266
n2
3925668568900
n3
7778044905618637000
n4
1.5410873712849E+25
n5
3.053402641348E+31
2 √n
1407.5972435324
3 √n
125.59883327516
4 √n
37.517958946782
5 √n
18.17152446263
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 15241 , 30482 , 76205 , 152410 , 198133 , 396266 , 990665 , 1981330
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
-1981329
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 1981330 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981330) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100011101110010010
3
Ternary
10201122212121
4
Quaternary
13203232102
5
Quinary
1001400310
6
Senary
110244454
8
Octal
7435622
10
Decimal
1981330
12
Duodecimal
7b672a
16
Hexadecimal
1e3b92
20
Vigesimal
c7d6a
36
Base36
16gsy
md5
3a535dba359f0aa0ff2302f95da19817
sha1
ec74cf9496c77b8d1a816a99993a4cf5e8919978
sha256
b8a738511bd17602d8db29d6b7a13a73a6b373ebd36f0da8d9b7b924f652c6bc
sha512
251d2563d7fe7da9fbe45b378dc698912bebee6d89c00d032879157ec56d84af6134f03fd9e3894f9eb9fd781a853f8cde9797bd47be3573f2d6d39a08c731a5
ripemd-160
b332bda6ee2b0f4686305cedfa2b7596f64ccccc
Diameter
3962660
Circumference
12449063.544674
Area
12332851536485
Volume
3.2580598313044E+19
Surface area
49331406145938
Circumference
12449063.544674
Perimeter
7925320
Area
3925668568900
Diagonal
2802023.7575367
Surface area
23554011413400
Volume
7778044905618637000
Space diagonal
3431764.2265604
Perimeter
5943990
Area
1699864353752.8
Altitude
1715882.1132802
Surface area
1699864353752.8
Volume
9.1665138285607E+17
Height
934007.91917889