78440138 is an even 8-digits composite number following 78440137
and preceding 78440139 . In scientific notation, it is written as 7.8440138 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 33588000 positive integers (up to 78440138) that are relatively prime to 78440138.
78440138 has 16 divisors, whose sum is 134585664
The reverse of 78440138 is 83104487
Previous prime number is 3001
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-eight million four hundred forty thousand one hundred thirty-eight
Scientific notation
7.8440138 × 10^7
Engineering notation
7.8440138 × 10^6
Prime Factorization
2 × 7 × 3001 × 1867
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78440138
Product of the distinct prime numbers
The prime factorization of 78440138 is 2 × 7 × 3001 × 1867.
Since it has a total of 4 prime factors.
3 , 7 , 12 , 77 , 747 , 534 , 1228 , 7129 , 51293 , 38237 , 670268 , 187403 , 5322169 , 2243 , 33529211 , 12740841 , 985109831 , 582539506 , 1161389888 , 4675352415
n×2
156880276
n×3
235320414
n×4
313760552
n×5
392200690
n÷2
39220069
n÷3
26146712.666667
n÷3
19610034.5
n÷5
15688027.6
n2
6152855249459044
n3
4.8263081486159E+23
n4
3.7857627720796E+31
n5
2.9695575427718E+39
2 √n
8856.6437209589
3 √n
428.06801914855
4 √n
94.109742965109
5 √n
37.923435189322
1 , 2 , 7 , 14 , 1867 , 3001 , 3734 , 6002 , 13069 , 21007 , 26138 , 42014 , 5602867 , 11205734 , 39220069 , 78440138
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
-78440137
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 78440138 can be divided by 16 positive divisors.
The sum of these divisors (counting 78440138) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101011001110011011001010
3
Ternary
12110121011122022
4
Quaternary
10223032123022
5
Quinary
130040041023
6
Senary
11441124442
8
Octal
453163312
10
Decimal
78440138
12
Duodecimal
22329722
16
Hexadecimal
4ace6ca
20
Vigesimal
14a506i
36
Base36
1ap8sq
md5
3dad3edc8b1209f2b4a5518056412cca
sha1
5b80d9e8aaf93ea53856024699d7d5d80d9ebeef
sha256
8d856b9e9efab1e74ea5e2f31bd73354963964934b1ab1a41e1a82acd42cb81b
sha512
43f1fdf804e100ce64044aab8d136a19a208f31ab71cb8070d5c87a49d646af1f88f186e942be3ba12d4bca4cdb24e220d6d739a94318a441624d77ce4e0eec0
ripemd-160
830837dd429eab3a161cba0c80148fa10b082ddc
Diameter
156880276
Circumference
492853922.57474
Area
1.9329764850302E+16
Volume
2.0216392298203E+24
Surface area
7.7319059401208E+16
Circumference
492853922.57474
Perimeter
313760552
Area
6152855249459044
Diagonal
110931106.99402
Surface area
36917131496754264
Volume
4.8263081486159E+23
Space diagonal
135862304.36871
Perimeter
235320414
Area
2.66426447592E+15
Altitude
67931152.184357
Surface area
2.66426447592E+15
Volume
5.6878586999703E+22
Height
36977035.664672