78811220 is an even 8-digits composite number following 78811219
and preceding 78811221 . In scientific notation, it is written as 7.8811220 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 31524480 positive integers (up to 78811220) that are relatively prime to 78811220.
78811220 has 12 divisors, whose sum is 165503604
The reverse of 78811220 is 02211887
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
seventy-eight million eight hundred eleven thousand two hundred twenty
Scientific notation
7.8811220 × 10^7
Engineering notation
7.8811220 × 10^6
Prime Factorization
2 × 2 × 5 × 3940561
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
39405610
Product of the distinct prime numbers
The prime factorization of 78811220 is 2 × 2 × 5 × 3940561.
Since it has a total of 4 prime factors.
6 , 3 , 43 , 11 , 469 , 898 , 6900 , 2631 , 5277 , 37928 , 895785 , 740740 , 9103745 , 6645392 , 93259165 , 73917155 , 68373191 , 523383274 , 3811854956 , 8112273918
n×2
157622440
n×3
236433660
n×4
315244880
n×5
394056100
n÷2
39405610
n÷3
26270406.666667
n÷3
19702805
n÷5
15762244
n2
6211208397888400
n3
4.8951291151183E+23
n4
3.8579109761999E+31
n5
3.0404667068571E+39
2 √n
8877.5683607619
3 √n
428.74198745747
4 √n
94.220848864579
5 √n
37.959248868392
1 , 2 , 4 , 5 , 10 , 20 , 3940561 , 7881122 , 15762244 , 19702805 , 39405610 , 78811220
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78811219
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78811220 can be divided by 12 positive divisors.
The sum of these divisors (counting 78811220) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101100101001000001010100
3
Ternary
12111022000200002
4
Quaternary
10230221001110
5
Quinary
130133424340
6
Senary
11453110432
8
Octal
454510124
10
Decimal
78811220
12
Duodecimal
22488418
16
Hexadecimal
4b29054
20
Vigesimal
14cb810
36
Base36
1ax74k
md5
b78a52ee652027d9e201a736d4998db1
sha1
e68f34a03f49b51cb0211c4c03174dbb8157e060
sha256
22128267e5473716e762de10157be0e0361e3aad838a9036fc70b22bd14a5206
sha512
c3ca9305294c77c3acc38e81d7b57639e7fcbc788bbfb4ee4e3ea1f693de23fd2a6145decb261f2a7fe860f40fa77b225a23ea4c5bd7becfe04f6c8ed9dbf620
ripemd-160
7522acd62b17a9e4bc9ed20ed6d110fb0fac3cfa
Diameter
157622440
Circumference
495185499.5449
Area
1.9513086672721E+16
Volume
2.0504668888572E+24
Surface area
7.8052346690886E+16
Circumference
495185499.5449
Perimeter
315244880
Area
6211208397888400
Diagonal
111455896.19117
Surface area
37267250387330400
Volume
4.8951291151183E+23
Space diagonal
136505037.24649
Perimeter
236433660
Area
2.6895321303853E+15
Altitude
68252518.623244
Surface area
2.6895321303853E+15
Volume
5.7689649868064E+22
Height
37151965.397057