78168021 is an odd 8-digits composite number following 78168020
and preceding 78168022 . In scientific notation, it is written as 7.8168021 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 50314992 positive integers (up to 78168021) that are relatively prime to 78168021.
78168021 has 8 divisors, whose sum is 107818080
The reverse of 78168021 is 12086187
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-eight million one hundred sixty-eight thousand twenty-one
Scientific notation
7.8168021 × 10^7
Engineering notation
7.8168021 × 10^6
Prime Factorization
3 × 29 × 898483
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78168021
Product of the distinct prime numbers
The prime factorization of 78168021 is 3 × 29 × 898483.
Since it has a total of 3 prime factors.
5 , 4 , 10 , 1 , 812 , 826 , 1368 , 5048 , 99467 , 14678 , 412047 , 421680 , 8713351 , 7672198 , 10712641 , 7093296 , 40303290 , 640317650 , 977559472 , 790276314
n×2
156336042
n×3
234504063
n×4
312672084
n×5
390840105
n÷2
39084010.5
n÷3
26056007
n÷3
19542005.25
n÷5
15633604.2
n2
6110239507056441
n3
4.7762533010262E+23
n4
3.7335026833593E+31
n5
2.9184051615639E+39
2 √n
8841.268065159
3 √n
427.57244147028
4 √n
94.028017447774
5 √n
37.897086532938
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78168020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78168021 can be divided by 8 positive divisors.
The sum of these divisors (counting 78168021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101010001011111111010101
3
Ternary
12110002100100220
4
Quaternary
10222023333111
5
Quinary
130002334041
6
Senary
11431224553
8
Octal
452137725
10
Decimal
78168021
12
Duodecimal
22218159
16
Hexadecimal
4a8bfd5
20
Vigesimal
148b011
36
Base36
1ajetx
md5
2abbf99ecd898d7e63fddc3e2db4b93e
sha1
9b50801a2aa7bb614d335cd571f5e0a74bf65a24
sha256
efc6a5082df0da70c128da265e31d0f62c0c0d8bc56d1d8dc9a006fc87a7a5fc
sha512
925f6eb5da9610cee943e26c84c859fae678464ffa11f4b4093cab95972ab78cea941c7bbda281ec7227a4f8fd08fcd4802fd1fa8a477f3132f1b8c0bef4d03a
ripemd-160
f8cecc17d76c6214d2f81c58e17102aa9d92ad7f
Diameter
156336042
Circumference
491144161.03851
Area
1.9195883547043E+16
Volume
2.0006723042917E+24
Surface area
7.6783534188171E+16
Circumference
491144161.03851
Perimeter
312672084
Area
6110239507056441
Diagonal
110546275.44206
Surface area
36661437042338646
Volume
4.7762533010262E+23
Space diagonal
135390983.89911
Perimeter
234504063
Area
2.6458113181591E+15
Altitude
67695491.949555
Surface area
2.6458113181591E+15
Volume
5.6288684963671E+22
Height
36848758.480688