12912909 is an odd 8-digits composite number following 12912908
and preceding 12912910 . In scientific notation, it is written as 1.2912909 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 8346240 positive integers (up to 12912909) that are relatively prime to 12912909.
12912909 has 8 divisors, whose sum is 13099360
The reverse of 12912909 is 90921921
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million nine hundred twelve thousand nine hundred nine
Scientific notation
1.2912909 × 10^7
Engineering notation
1.2912909 × 10^6
Prime Factorization
123 × 277 × 379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12912909
Product of the distinct prime numbers
The prime factorization of 12912909 is 123 × 277 × 379.
Since it has a total of 3 prime factors.
10 , 3 , 89 , 85 , 786 , 100 , 8967 , 2197 , 32364 , 16198 , 356450 , 820345 , 1550979 , 4998057 , 39642624 , 63765310 , 865775895 , 861876513 , 2142673641 , 1922109638
n×2
25825818
n×3
38738727
n×4
51651636
n×5
64564545
n÷2
6456454.5
n÷3
4304303
n÷3
3228227.25
n÷5
2582581.8
n2
166743218842281
n3
2.1531400112775E+21
n4
2.7803301029885E+28
n5
3.5902149609851E+35
2 √n
3593.4536312578
3 √n
234.60721468529
4 √n
59.945422104259
5 √n
26.436552405031
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
-12912908
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 12912909 can be divided by 8 positive divisors.
The sum of these divisors (counting 12912909) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010000100100001101
3
Ternary
220022001011220
4
Quaternary
301100210031
5
Quinary
11301203114
6
Senary
1140433553
8
Octal
61204415
10
Decimal
12912909
12
Duodecimal
43a88b9
16
Hexadecimal
c5090d
20
Vigesimal
40e259
36
Base36
7ornx
md5
42f01e16c721fb4b1bb9a849f19ab91b
sha1
15f38fbd9ce997ed2bd85728b01069a9fb8f8dc5
sha256
8e4e712383b1986321c139a28d5030a44da0bcfc688177291f0f8987c54b4f62
sha512
99103489d75a19afcfcfc20d4c9904f538fa1817e6f59333efa29cb9f79536d50b86e2dfcfbc465d9a9bd50d6f9324168b35fedabd2c03a854a4432c67623d02
ripemd-160
8719276cc6b821aa8aff88d7635434832d18d5a4
Diameter
25825818
Circumference
81134200.101747
Area
5.2383927135083E+14
Volume
9.0190517887727E+21
Surface area
2.0953570854033E+15
Circumference
81134200.101747
Perimeter
51651636
Area
166743218842281
Diagonal
18261611.03749
Surface area
1000459313053686
Volume
2.1531400112775E+21
Space diagonal
22365814.461513
Perimeter
38738727
Area
72201931713102
Altitude
11182907.230757
Surface area
72201931713102
Volume
2.5374998380306E+20
Height
6087203.6791632