71781009 is an odd 8-digits composite number following 71781008
and preceding 71781010 . In scientific notation, it is written as 7.1781009 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 47138688 positive integers (up to 71781009) that are relatively prime to 71781009.
71781009 has 16 divisors, whose sum is 97149312
The reverse of 71781009 is 90018717
Previous prime number is 997
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-one million seven hundred eighty-one thousand nine
Scientific notation
7.1781009 × 10^7
Engineering notation
7.1781009 × 10^6
Prime Factorization
3 × 103 × 997 × 233
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71781009
Product of the distinct prime numbers
The prime factorization of 71781009 is 3 × 103 × 997 × 233.
Since it has a total of 4 prime factors.
6 , 3 , 97 , 49 , 812 , 11 , 2810 , 5463 , 58060 , 7145 , 290485 , 909084 , 5212667 , 2294232 , 50044594 , 53744383 , 424230138 , 663697715 , 722012797 , 9238697982
n×2
143562018
n×3
215343027
n×4
287124036
n×5
358905045
n÷2
35890504.5
n÷3
23927003
n÷3
17945252.25
n÷5
14356201.8
n2
5152513253058081
n3
3.6985260019038E+23
n4
2.6548392822939E+31
n5
1.9056704241589E+39
2 √n
8472.3673787201
3 √n
415.59455882726
4 √n
92.045463650959
5 √n
37.256487848346
1 , 3 , 103 , 233 , 309 , 699 , 997 , 2991 , 23999 , 71997 , 102691 , 232301 , 308073 , 696903 , 23927003 , 71781009
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
-71781008
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 71781009 can be divided by 16 positive divisors.
The sum of these divisors (counting 71781009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001110100101010010001
3
Ternary
12000001212000220
4
Quaternary
10101310222101
5
Quinary
121333443014
6
Senary
11042303253
8
Octal
421645221
10
Decimal
71781009
12
Duodecimal
20057b29
16
Hexadecimal
4474a91
20
Vigesimal
128cca9
36
Base36
16qikx
md5
920944de5b4fa3dbb125f5853be62a53
sha1
40d94365ec7391fab7a8b72921050d1a7e8c3051
sha256
37c3647f567f972d1520ad21bbaa8358c4f0e49a1f1df992a8d3c588ee5b769b
sha512
4a3bbd6e7f25abc0b1bf3f482d8a44eff061f59d832a556aea9bd1d85002f9d81426091231c25b7bf26b32a5b3915c2e0fae73538ba37fbe07b8607f5db6f149
ripemd-160
ff69d83fe57de49a27837fd68f80cd069bea28f7
Diameter
143562018
Circumference
451013381.08333
Area
1.6187097783331E+16
Volume
1.5492349488922E+24
Surface area
6.4748391133325E+16
Circumference
451013381.08333
Perimeter
287124036
Area
5152513253058081
Diagonal
101513676.44863
Surface area
30915079518348486
Volume
3.6985260019038E+23
Space diagonal
124328354.60656
Perimeter
215343027
Area
2.2311036852421E+15
Altitude
62164177.303279
Surface area
2.2311036852421E+15
Volume
4.3587546939016E+22
Height
33837892.149542