1981191512 is an even 10-digits composite number following 1981191511
and preceding 1981191513 . In scientific notation, it is written as 1.981191512 × 10^9.
The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors.
There are 989780896 positive integers (up to 1981191512) that are relatively prime to 1981191512.
1981191512 has 16 divisors, whose sum is 3717789840
The reverse of 1981191512 is 2151911891
Previous prime number is 1223
Is Prime? no Number parity even Number length 10 Sum of Digits 38 Digital Root 2
Name
one billion nine hundred eighty-one million one hundred ninety-one thousand five hundred twelve
Scientific notation
1.981191512 × 10^9
Engineering notation
1.981191512 × 10^9
Prime Factorization
2 × 2 × 2 × 1223 × 202493
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
495297878 Product of the distinct prime numbers
The prime factorization of 1981191512 is 2 × 2 × 2 × 1223 × 202493.
Since it has a total of 5 prime factors.
3 , 10 , 83 , 42 , 747 , 992 , 8972 , 3118 , 47684 , 41488 , 752911 , 373332 , 5772064 , 5244920 , 61539203 , 65006416 , 229667704 , 364753128 , 1495861662 , 3547701643
n×2
3962383024
n×3
5943574536
n×4
7924766048
n×5
9905957560
n÷2
990595756
n÷3
660397170.66667
n÷3
495297878
n÷5
396238302.4
n2
3925119807220846144
n3
7.776414045649E+27
n4
1.5406565501037E+37
n5
3.0523356799727E+46
2 √n44510.577529392
3 √n1255.9590690138
4 √n210.97530075673
5 √n72.341130564068
1 , 2 , 4 , 8 , 1223 , 2446 , 4892 , 9784 , 202493 , 404986 , 809972 , 1619944 , 247648939 , 495297878 , 990595756 , 1981191512
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
-1981191511 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 1981191512 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981191512) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000101101001010101011000
3
Ternary
12010001221221211102
4
Quaternary
1312011221111120
5
Quinary
13024141112022
6
Senary
524331450532
8
Octal
16605512530
10
Decimal
1981191512
12
Duodecimal
4735b6a48
16
Hexadecimal
76169558
20
Vigesimal
1aj28ifc
36
Base36
wrjt5k
md5
93475cc62d385df85f0e0b9a52091b78
sha1
ebddf065cbb52f36709d9b823b286c516807aeb2
sha256
d0760ca036084b0585893f6aa08eec658d2f37acb556827881657c413ce0d9e3
sha512
0aed0c59aef77ad6de965e58da9ce05bd06854717b4d019b482b154b3c0e5aafbb142f84c362215f917092bd98c1b17ea85f633661970425908f29d30f2a55c6
ripemd-160
6250a28135e5847671853c7a55057b906c9f5ad4
Diameter
3962383024
Circumference
12448193398.907
Area
1.2331127550825E+19
Volume
3.2573766982778E+28
Surface area
4.9324510203299E+19
Circumference
12448193398.907
Perimeter
7924766048
Area
3925119807220846144
Diagonal
2801827905.9289
Surface area
2.3550718843325E+19
Volume
7.776414045649E+27
Space diagonal
3431524358.3082
Perimeter
5943574536
Area
1.6996267329754E+18
Altitude
1715762179.1541
Surface area
1.6996267329754E+18
Volume
9.1645918416546E+26
Height
933942635.30962