71781489 is an odd 8-digits composite number following 71781488
and preceding 71781490 . In scientific notation, it is written as 7.1781489 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 43936992 positive integers (up to 71781489) that are relatively prime to 71781489.
71781489 has 16 divisors, whose sum is 86352000
The reverse of 71781489 is 98418717
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million seven hundred eighty-one thousand four hundred eighty-nine
Scientific notation
7.1781489 × 10^7
Engineering notation
7.1781489 × 10^6
Prime Factorization
9 × 13 × 199 × 3083
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71781489
Product of the distinct prime numbers
The prime factorization of 71781489 is 9 × 13 × 199 × 3083.
Since it has a total of 4 prime factors.
4 , 5 , 29 , 11 , 489 , 466 , 9422 , 4368 , 97204 , 83503 , 212893 , 265475 , 8345846 , 1711527 , 45134883 , 95798531 , 299440783 , 938991550 , 1744984610 , 6902215304
n×2
143562978
n×3
215344467
n×4
287125956
n×5
358907445
n÷2
35890744.5
n÷3
23927163
n÷3
17945372.25
n÷5
14356297.8
n2
5152582163057121
n3
3.6986001985908E+23
n4
2.6549102947054E+31
n5
1.9057341411539E+39
2 √n
8472.3957060562
3 √n
415.59548518623
4 √n
92.045617527703
5 √n
37.25653767508
1 , 9 , 13 , 117 , 199 , 1791 , 2587 , 3083 , 23283 , 27747 , 40079 , 360711 , 613517 , 5521653 , 7975721 , 71781489
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
-71781488
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 71781489 can be divided by 16 positive divisors.
The sum of these divisors (counting 71781489) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001110100110001110001
3
Ternary
12000001212200200
4
Quaternary
10101310301301
5
Quinary
121334001424
6
Senary
11042305413
8
Octal
421646161
10
Decimal
71781489
12
Duodecimal
20058269
16
Hexadecimal
4474c71
20
Vigesimal
128cde9
36
Base36
16qiy9
md5
63efbfbb60b666520014c1a29205f474
sha1
1d3db0a969885355db0c5de005c23b79679f4f6b
sha256
3e43e907c0eb4773aae436f24cb594ca3233d364baa3cf68dff4f179b0877cf4
sha512
91e6ac028d9301470b6fda4bb01a0e85688af3c10b6658f5746cbfedcdfd4206da018bf805d666ae1f0a7679b91b8232c828ceee7b6768d3c826da4b71553011
ripemd-160
adec3813b62613aa09e78b66c0a8485dda7ebd3e
Diameter
143562978
Circumference
451016397.01227
Area
1.6187314270478E+16
Volume
1.5492660283278E+24
Surface area
6.4749257081912E+16
Circumference
451016397.01227
Perimeter
287125956
Area
5152582163057121
Diagonal
101514355.27114
Surface area
30915492978342726
Volume
3.6986001985908E+23
Space diagonal
124329185.99095
Perimeter
215344467
Area
2.231133524147E+15
Altitude
62164592.995473
Surface area
2.231133524147E+15
Volume
4.3588421355358E+22
Height
33838118.423712