78444945 is an odd 8-digits composite number following 78444944
and preceding 78444946 . In scientific notation, it is written as 7.8444945 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 41837280 positive integers (up to 78444945) that are relatively prime to 78444945.
78444945 has 4 divisors, whose sum is 80188212
The reverse of 78444945 is 54944487
Previous prime number is 45
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-eight million four hundred forty-four thousand nine hundred forty-five
Scientific notation
7.8444945 × 10^7
Engineering notation
7.8444945 × 10^6
Prime Factorization
45 × 1743221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78444945
Product of the distinct prime numbers
The prime factorization of 78444945 is 45 × 1743221.
Since it has a total of 2 prime factors.
1 , 2 , 93 , 89 , 550 , 68 , 8005 , 975 , 60006 , 3031 , 284695 , 645771 , 7076509 , 5876602 , 47399695 , 86061159 , 604016101 , 923364895 , 3369657217 , 3378646169
n×2
156889890
n×3
235334835
n×4
313779780
n×5
392224725
n÷2
39222472.5
n÷3
26148315
n÷3
19611236.25
n÷5
15688989
n2
6153609396053025
n3
4.8271955062486E+23
n4
3.7866908599192E+31
n5
2.9704675623836E+39
2 √n
8856.9150949978
3 √n
428.07676331528
4 √n
94.11118474973
5 √n
37.923899985762
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
-78444944
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 78444945 can be divided by 4 positive divisors.
The sum of these divisors (counting 78444945) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011001111100110010001
3
Ternary
12110121102020100
4
Quaternary
10223033212101
5
Quinary
130040214240
6
Senary
11441203013
8
Octal
453174621
10
Decimal
78444945
12
Duodecimal
22330469
16
Hexadecimal
4acf991
20
Vigesimal
14a5c75
36
Base36
1apci9
md5
a736411220324d56a87df43622ec16da
sha1
3cb3fb51597d086d118d159df6deb358ec65cbb5
sha256
e6813cac4508e0e2b4fe26307c04aaf314ac0a17e20d636ef7f0483c4ae856ef
sha512
6653a132e249efef579827a275c9f9d9cf7fa14fe6edb0f7d81512861c3e67c4287ba8d34729b2f12a25790adee433b5a82c0d4698edf34e44f080212cd890a3
ripemd-160
efe8e26f89a960cb64fe0687565b47f088dc673e
Diameter
156889890
Circumference
492884125.84651
Area
1.9332134071701E+16
Volume
2.0220109253163E+24
Surface area
7.7328536286805E+16
Circumference
492884125.84651
Perimeter
313779780
Area
6153609396053025
Diagonal
110937905.11861
Surface area
36921656376318150
Volume
4.8271955062486E+23
Space diagonal
135870630.33695
Perimeter
235334835
Area
2.6645910309743E+15
Altitude
67935315.168473
Surface area
2.6645910309743E+15
Volume
5.6889044609694E+22
Height
36979301.706204