78161649 is an odd 8-digits composite number following 78161648
and preceding 78161650 . In scientific notation, it is written as 7.8161649 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 48029760 positive integers (up to 78161649) that are relatively prime to 78161649.
78161649 has 16 divisors, whose sum is 112668480
The reverse of 78161649 is 94616187
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-eight million one hundred sixty-one thousand six hundred forty-nine
Scientific notation
7.8161649 × 10^7
Engineering notation
7.8161649 × 10^6
Prime Factorization
3 × 19 × 37 × 37061
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78161649
Product of the distinct prime numbers
The prime factorization of 78161649 is 3 × 19 × 37 × 37061.
Since it has a total of 4 prime factors.
4 , 9 , 37 , 9 , 928 , 91 , 6912 , 9863 , 25993 , 8269 , 609182 , 594530 , 2983059 , 5539951 , 82996307 , 60200861 , 5913022 , 6891601 , 5906005409 , 7102637930
n×2
156323298
n×3
234484947
n×4
312646596
n×5
390808245
n÷2
39080824.5
n÷3
26053883
n÷3
19540412.25
n÷5
15632329.8
n2
6109243374399201
n3
4.7750853628537E+23
n4
3.7322854607641E+31
n5
2.9172158615204E+39
2 √n
8840.9077022668
3 √n
427.56082305482
4 √n
94.026101175508
5 √n
37.896468663618
1 , 3 , 19 , 37 , 57 , 111 , 703 , 2109 , 37061 , 111183 , 704159 , 1371257 , 2112477 , 4113771 , 26053883 , 78161649
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
-78161648
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 78161649 can be divided by 16 positive divisors.
The sum of these divisors (counting 78161649) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101010001010011011110001
3
Ternary
12110002000121220
4
Quaternary
10222022123301
5
Quinary
130002133044
6
Senary
11431135253
8
Octal
452123361
10
Decimal
78161649
12
Duodecimal
22214529
16
Hexadecimal
4a8a6f1
20
Vigesimal
148a429
36
Base36
1aj9wx
md5
87871e13b140c58722c9b565b7c88830
sha1
409016073bfc31bf722dacd5bbf4cc9954b8ef4a
sha256
667e1b9bd8b107251ec2c92c9fd096f7f28fe79578ace02211ef9ea5e71e77ae
sha512
aff1bcf1822bf0b77396d10ce82709718e1bc8d47c39be4528b37333900eeca36ba85c6854eaf28c732cefe36de78451dd89651d42c2d71e8503cadb94aca7b1
ripemd-160
433a1eb305a0ac49e1665f82632c3cff68c4ff8e
Diameter
156323298
Circumference
491104124.58173
Area
1.9192754104005E+16
Volume
2.000183079494E+24
Surface area
7.6771016416019E+16
Circumference
491104124.58173
Perimeter
312646596
Area
6109243374399201
Diagonal
110537264.07325
Surface area
36655460246395206
Volume
4.7750853628537E+23
Space diagonal
135379947.27137
Perimeter
234484947
Area
2.6453799800657E+15
Altitude
67689973.635683
Surface area
2.6453799800657E+15
Volume
5.6274920680307E+22
Height
36845754.691082