78561381 is an odd 8-digits composite number following 78561380
and preceding 78561382 . In scientific notation, it is written as 7.8561381 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 52374252 positive integers (up to 78561381) that are relatively prime to 78561381.
78561381 has 4 divisors, whose sum is 104748512
The reverse of 78561381 is 18316587
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-eight million five hundred sixty-one thousand three hundred eighty-one
Scientific notation
7.8561381 × 10^7
Engineering notation
7.8561381 × 10^6
Prime Factorization
3 × 26187127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78561381
Product of the distinct prime numbers
The prime factorization of 78561381 is 3 × 26187127.
Since it has a total of 2 prime factors.
9 , 2 , 55 , 17 , 743 , 117 , 8864 , 4713 , 38602 , 80774 , 332698 , 25395 , 5471759 , 8671042 , 47278254 , 13706913 , 162832612 , 726023111 , 5602828158 , 6030943667
n×2
157122762
n×3
235684143
n×4
314245524
n×5
392806905
n÷2
39280690.5
n÷3
26187127
n÷3
19640345.25
n÷5
15712276.2
n2
6171890584627161
n3
4.8487224770921E+23
n4
3.8092233388609E+31
n5
2.9925784603835E+39
2 √n
8863.4858266937
3 √n
428.28845702977
4 √n
94.146087686604
5 √n
37.935151412744
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78561380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78561381 can be divided by 4 positive divisors.
The sum of these divisors (counting 78561381) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011101100000001100101
3
Ternary
12110211022221210
4
Quaternary
10223230001211
5
Quinary
130102431011
6
Senary
11443502033
8
Octal
453540145
10
Decimal
78561381
12
Duodecimal
22387919
16
Hexadecimal
4aec065
20
Vigesimal
14b0391
36
Base36
1arucl
md5
98159b1d8c41ed6936b7a35af0287ebf
sha1
976436ccd7ab4ba95f3794cbe96b8cafe855f5b5
sha256
729d57a541d57919df92da81bd127623cc0b019fc88ea13622ee62b3a779d840
sha512
1f4c93b62f60fe942c51f4aa4a40cf0187419b90506b3d97371279ab1161eed50b57caa0da61fb06e0e52d64b2eab5ffc34b79cc2e4ad8ca5ce9142944a2d5a3
ripemd-160
929b548793c1752f2fd5a5bf6a8ce6e2d5db2185
Diameter
157122762
Circumference
493615714.81094
Area
1.9389566119425E+16
Volume
2.0310281217771E+24
Surface area
7.7558264477699E+16
Circumference
493615714.81094
Perimeter
314245524
Area
6171890584627161
Diagonal
111102570.48896
Surface area
37031343507762966
Volume
4.8487224770921E+23
Space diagonal
136072303.40478
Perimeter
235684143
Area
2.6725070178326E+15
Altitude
68036151.702388
Surface area
2.6725070178326E+15
Volume
5.7142742394057E+22
Height
37034190.162987