78448978 is an even 8-digits composite number following 78448977
and preceding 78448979 . In scientific notation, it is written as 7.8448978 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 39224488 positive integers (up to 78448978) that are relatively prime to 78448978.
78448978 has 4 divisors, whose sum is 117673470
The reverse of 78448978 is 87984487
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 55
Digital Root 1
Name
seventy-eight million four hundred forty-eight thousand nine hundred seventy-eight
Scientific notation
7.8448978 × 10^7
Engineering notation
7.8448978 × 10^6
Prime Factorization
2 × 39224489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78448978
Product of the distinct prime numbers
The prime factorization of 78448978 is 2 × 39224489.
Since it has a total of 2 prime factors.
5 , 2 , 7 , 82 , 640 , 36 , 9582 , 6291 , 38901 , 37633 , 984030 , 496162 , 1421119 , 1891688 , 80267753 , 10867664 , 134520414 , 353441741 , 4456878576 , 5595125229
n×2
156897956
n×3
235346934
n×4
313795912
n×5
392244890
n÷2
39224489
n÷3
26149659.333333
n÷3
19612244.5
n÷5
15689795.6
n2
6154242149244484
n3
4.8279400697275E+23
n4
3.7874696431537E+31
n5
2.9712312271144E+39
2 √n
8857.1427672811
3 √n
428.08409926281
4 √n
94.112394334015
5 √n
37.924289925339
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
-78448977
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 78448978 can be divided by 4 positive divisors.
The sum of these divisors (counting 78448978) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011010000100101010010
3
Ternary
12110121121202201
4
Quaternary
10223100211102
5
Quinary
130040331403
6
Senary
11441233414
8
Octal
453204522
10
Decimal
78448978
12
Duodecimal
2233286a
16
Hexadecimal
4ad0952
20
Vigesimal
14a628i
36
Base36
1apfma
md5
3f59ee545d1da9873fa8079e842160b6
sha1
74e8af31b5dc75c416ed77be2bd0fe3daa0cd651
sha256
bb97d0a553e2225fed611f2b5109493b5e4d51aa9e34c0e75c32392b685a1299
sha512
5b7fd0633b97dcb4ee3dfa7d987690168f737f79db5cec6c915de94771f14f894b3fd4f1e6709c798185617fe987279159fb745a7b3898b4dcab6c78ca59dd21
ripemd-160
7edae6fd5aea08f0acdc89c9ddd60f2fe66631f9
Diameter
156897956
Circumference
492909465.93285
Area
1.9334121924479E+16
Volume
2.022322807337E+24
Surface area
7.7336487697917E+16
Circumference
492909465.93285
Perimeter
313795912
Area
6154242149244484
Diagonal
110943608.64191
Surface area
36925452895466904
Volume
4.8279400697275E+23
Space diagonal
135877615.69785
Perimeter
235346934
Area
2.6648650211433E+15
Altitude
67938807.848927
Surface area
2.6648650211433E+15
Volume
5.6897819374443E+22
Height
36981202.880636