78291220 is an even 8-digits composite number following 78291219
and preceding 78291221 . In scientific notation, it is written as 7.8291220 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 26842368 positive integers (up to 78291220) that are relatively prime to 78291220.
78291220 has 12 divisors, whose sum is 137570580
The reverse of 78291220 is 02219287
Previous prime number is 245
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
seventy-eight million two hundred ninety-one thousand two hundred twenty
Scientific notation
7.8291220 × 10^7
Engineering notation
7.8291220 × 10^6
Prime Factorization
2 × 2 × 245 × 79889
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
39145610
Product of the distinct prime numbers
The prime factorization of 78291220 is 2 × 2 × 245 × 79889.
Since it has a total of 4 prime factors.
5 , 4 , 48 , 73 , 576 , 294 , 735 , 9274 , 15600 , 92260 , 928512 , 179701 , 5030551 , 1931403 , 55478007 , 53554910 , 500813397 , 545703997 , 6502551798 , 5513315956
n×2
156582440
n×3
234873660
n×4
313164880
n×5
391456100
n÷2
39145610
n÷3
26097073.333333
n÷3
19572805
n÷5
15658244
n2
6129515129088400
n3
4.7988721746479E+23
n4
3.7570955717724E+31
n5
2.9414759597066E+39
2 √n
8848.2325918796
3 √n
427.79695292069
4 √n
94.065044473915
5 √n
37.909024771804
1 , 2 , 4 , 245 , 490 , 980 , 79889 , 159778 , 319556 , 19572805 , 39145610 , 78291220
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
-78291219
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 78291220 can be divided by 12 positive divisors.
The sum of these divisors (counting 78291220) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101010101010000100010100
3
Ternary
12110022121100211
4
Quaternary
10222222010110
5
Quinary
130020304340
6
Senary
11434015204
8
Octal
452520424
10
Decimal
78291220
12
Duodecimal
22277504
16
Hexadecimal
4aaa114
20
Vigesimal
1496810
36
Base36
1am1w4
md5
ec3571f31f5d0148c7b20a0fa9c9ac0e
sha1
a9a128aaa26d3859061d7d672984e91149422981
sha256
4ee307e10ad75f28e595c79e7ceeab1e57110a835c0f3b2931ab6ef494ecc865
sha512
7aa80976ee2a87da772fce8306ac60c1d216a91ee832dba23af996881b5d3d7c0c073feb3e8a88a5f58d36777aa5d8efff5316f1cb05ef821f2f5e841b151515
ripemd-160
cbd4f2becb55ae57e32e8bb353065b22b6e8b3fb
Diameter
156582440
Circumference
491918243.18516
Area
1.9256439699612E+16
Volume
2.0101468759187E+24
Surface area
7.7025758798446E+16
Circumference
491918243.18516
Perimeter
313164880
Area
6129515129088400
Diagonal
110720505.13874
Surface area
36777090774530400
Volume
4.7988721746479E+23
Space diagonal
135604370.82655
Perimeter
234873660
Area
2.6541579073358E+15
Altitude
67802185.413276
Surface area
2.6541579073358E+15
Volume
5.6555250945683E+22
Height
36906835.046245