19981749 is an odd 8-digits composite number following 19981748
and preceding 19981750 . In scientific notation, it is written as 1.9981749 × 10^7.
The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors.
There are 11867904 positive integers (up to 19981749) that are relatively prime to 19981749.
19981749 has 24 divisors, whose sum is 29815840
The reverse of 19981749 is 94718991
Previous prime number is 17
Is Prime? no Number parity odd Number length 8 Sum of Digits 48 Digital Root 3
Name
nineteen million nine hundred eighty-one thousand seven hundred forty-nine
Scientific notation
1.9981749 × 10^7
Engineering notation
1.9981749 × 10^6
Prime Factorization
3 × 19 × 17 × 17 × 1213
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
1175397 Product of the distinct prime numbers
The prime factorization of 19981749 is 3 × 19 × 17 × 17 × 1213.
Since it has a total of 5 prime factors.
6 , 5 , 62 , 94 , 618 , 886 , 2009 , 9863 , 46423 , 64993 , 381601 , 659695 , 5202356 , 5866306 , 73911271 , 5803199 , 593576796 , 682472359 , 9876409355 , 794059555
n×2
39963498
n×3
59945247
n×4
79926996
n×5
99908745
n÷2
9990874.5
n÷3
6660583
n÷3
4995437.25
n÷5
3996349.8
n2
399270293099001
n3
7.9781187798607E+21
n4
1.5941676695136E+29
n5
3.1854258236136E+36
2 √n4470.0949654342
3 √n271.35916847105
4 √n66.858768799868
5 √n28.848730051647
1 , 3 , 17 , 19 , 51 , 57 , 289 , 323 , 867 , 969 , 1213 , 3639 , 5491 , 16473 , 20621 , 23047 , 61863 , 69141 , 350557 , 391799 , 1051671 , 1175397 , 6660583 , 19981749
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
-19981748 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 19981749 can be divided by 24 positive divisors.
The sum of these divisors (counting 19981749) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100001110010110110101
3
Ternary
1101121011210210
4
Quaternary
1030032112311
5
Quinary
20103403444
6
Senary
1552140033
8
Octal
114162665
10
Decimal
19981749
12
Duodecimal
6837619
16
Hexadecimal
130e5b5
20
Vigesimal
64he79
36
Base36
bwa0l
md5
a73f9d9985af9d6300f35347ac2b00a4
sha1
bf0cf0e998373432b5f1b373b9b94a86f7c3fd74
sha256
de5888a826f19e76b854f14746a2202cc14281bd9212280ec76317c81b35c7a9
sha512
33a30fb11564af23c197e7b87346d8510b0f72f95bdc018442575206b72835d51e834350f091f00500e09052340188ad32e22e248bc1fca7218121fd5d957296
ripemd-160
47089a977c3d553e71057eb1745f781828a75bc1
Diameter
39963498
Circumference
125549031.72855
Area
1.2543446195965E+15
Volume
3.3418665797703E+22
Surface area
5.0173784783859E+15
Circumference
125549031.72855
Perimeter
79926996
Area
399270293099001
Diagonal
28258460.435735
Surface area
2395621758594006
Volume
7.9781187798607E+21
Space diagonal
34609404.492089
Perimeter
59945247
Area
1.728891084001E+14
Altitude
17304702.246044
Surface area
1.728891084001E+14
Volume
9.4023031505854E+20
Height
9419486.8119117