78449621 is an odd 8-digits composite number following 78449620
and preceding 78449622 . In scientific notation, it is written as 7.8449621 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 78038700 positive integers (up to 78449621) that are relatively prime to 78449621.
78449621 has 4 divisors, whose sum is 78860544
The reverse of 78449621 is 12694487
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-eight million four hundred forty-nine thousand six hundred twenty-one
Scientific notation
7.8449621 × 10^7
Engineering notation
7.8449621 × 10^6
Prime Factorization
191 × 410731
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78449621
Product of the distinct prime numbers
The prime factorization of 78449621 is 191 × 410731.
Since it has a total of 2 prime factors.
3 , 10 , 27 , 86 , 881 , 432 , 1100 , 4408 , 91620 , 28018 , 162421 , 475815 , 5656316 , 7247431 , 79414490 , 67355827 , 877025190 , 166434243 , 3528591098 , 6652408342
n×2
156899242
n×3
235348863
n×4
313798484
n×5
392248105
n÷2
39224810.5
n÷3
26149873.666667
n÷3
19612405.25
n÷5
15689924.2
n2
6154343035043641
n3
4.8280587860316E+23
n4
3.787593819299E+31
n5
2.9713529962595E+39
2 √n
8857.1790655942
3 √n
428.0852688439
4 √n
94.112587179368
5 √n
37.924352093743
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
-78449620
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 78449621 can be divided by 4 positive divisors.
The sum of these divisors (counting 78449621) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011010000101111010101
3
Ternary
12110121122122112
4
Quaternary
10223100233111
5
Quinary
130040341441
6
Senary
11441240405
8
Octal
453205725
10
Decimal
78449621
12
Duodecimal
22333105
16
Hexadecimal
4ad0bd5
20
Vigesimal
14a6411
36
Base36
1apg45
md5
ac07955fbf7fc863d02e397e72963cd7
sha1
06e284f28e760458183b6e0f05e0a48a24f0d0d3
sha256
2ac80aebc5b26b15840ae74355eac0b42849b9303bb97712cc51f19b41b5d0dc
sha512
316f46ef6d5fed5b747b0135f1b49bc8e2e524fed10935f8e87332dd6f6680d327a48c1186ef2df4f5d9ba1d263180841ea941a07b46635401f14ca4df45fc7e
ripemd-160
646be0ab3ebf75c43162a2e9ef598416af83b4dd
Diameter
156899242
Circumference
492913506.02101
Area
1.9334438866565E+16
Volume
2.0223725351062E+24
Surface area
7.7337755466258E+16
Circumference
492913506.02101
Perimeter
313798484
Area
6154343035043641
Diagonal
110944517.98123
Surface area
36926058210261846
Volume
4.8280587860316E+23
Space diagonal
135878729.40652
Perimeter
235348863
Area
2.6649087059758E+15
Altitude
67939364.703261
Surface area
2.6649087059758E+15
Volume
5.6899218459504E+22
Height
36981505.993743