12978765 is an odd 8-digits composite number following 12978764
and preceding 12978766 . In scientific notation, it is written as 1.2978765 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 6858432 positive integers (up to 12978765) that are relatively prime to 12978765.
12978765 has 16 divisors, whose sum is 15523840
The reverse of 12978765 is 56787921
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million nine hundred seventy-eight thousand seven hundred sixty-five
Scientific notation
1.2978765 × 10^7
Engineering notation
1.2978765 × 10^6
Prime Factorization
9 × 15 × 127 × 757
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12978765
Product of the distinct prime numbers
The prime factorization of 12978765 is 9 × 15 × 127 × 757.
Since it has a total of 4 prime factors.
3 , 1 , 23 , 47 , 483 , 808 , 3020 , 4987 , 30147 , 76074 , 27685 , 55024 , 9869577 , 6516929 , 39678095 , 37581993 , 281075600 , 293885612 , 9629742553 , 1186749245
n×2
25957530
n×3
38936295
n×4
51915060
n×5
64893825
n÷2
6489382.5
n÷3
4326255
n÷3
3244691.25
n÷5
2595753
n2
168448340925225
n3
2.1862514315084E+21
n4
2.8374843560461E+28
n5
3.6827042648298E+35
2 √n
3602.6053072742
3 √n
235.00537184039
4 √n
60.021706967348
5 √n
26.463462913955
1 , 9 , 15 , 127 , 135 , 757 , 1143 , 1905 , 6813 , 11355 , 17145 , 96139 , 102195 , 865251 , 1442085 , 12978765
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12978764
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12978765 can be divided by 16 positive divisors.
The sum of these divisors (counting 12978765) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001100000101001001101
3
Ternary
220102101112000
4
Quaternary
301200221031
5
Quinary
11310310030
6
Senary
1142102513
8
Octal
61405115
10
Decimal
12978765
12
Duodecimal
441aa39
16
Hexadecimal
c60a4d
20
Vigesimal
4126i5
36
Base36
7q6h9
md5
d8a3945c9a145b6ccc940574341201e3
sha1
659b73935a5d752a3e79f6bef70ac993ffbb873c
sha256
d610901bd8453a696a83504bdfb63826b1b6ab1eed4bce962901cff6e19e8c3a
sha512
331000f844ae75193ea18a64841cd0daa7cf7ecfc8852b30fe8548dd31d3f0a631c61c67511b6413488f5c420dc41c32992e6e2e71b051c0fc2f5a9a0fbb2c04
ripemd-160
d815326c5a32136ae480e371386e3a6ac19f752a
Diameter
25957530
Circumference
81547985.553337
Area
5.2919607036008E+14
Volume
9.1577485815025E+21
Surface area
2.1167842814403E+15
Circumference
81547985.553337
Perimeter
51915060
Area
168448340925225
Diagonal
18354745.485853
Surface area
1010690045551350
Volume
2.1862514315084E+21
Space diagonal
22479880.399497
Perimeter
38936295
Area
72940271233293
Altitude
11239940.199748
Surface area
72940271233293
Volume
2.5765220209973E+20
Height
6118248.4952844