12909861 is an odd 8-digits composite number following 12909860
and preceding 12909862 . In scientific notation, it is written as 1.2909861 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 8605116 positive integers (up to 12909861) that are relatively prime to 12909861.
12909861 has 8 divisors, whose sum is 17239680
The reverse of 12909861 is 16890921
Previous prime number is 729
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million nine hundred nine thousand eight hundred sixty-one
Scientific notation
1.2909861 × 10^7
Engineering notation
1.2909861 × 10^6
Prime Factorization
3 × 729 × 5903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12909861
Product of the distinct prime numbers
The prime factorization of 12909861 is 3 × 729 × 5903.
Since it has a total of 3 prime factors.
8 , 9 , 24 , 25 , 45 , 296 , 5783 , 5701 , 88105 , 61383 , 350318 , 52838 , 3147063 , 1313588 , 93447055 , 48495538 , 205439419 , 633031730 , 4872022545 , 9640722447
n×2
25819722
n×3
38729583
n×4
51639444
n×5
64549305
n÷2
6454930.5
n÷3
4303287
n÷3
3227465.25
n÷5
2581972.2
n2
166664511039321
n3
2.1516156711506E+21
n4
2.7777059239976E+28
n5
3.5859797377686E+35
2 √n
3593.029501688
3 √n
234.58875411323
4 √n
59.941884368845
5 √n
26.43530425528
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
-12909860
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 12909861 can be divided by 8 positive divisors.
The sum of these divisors (counting 12909861) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001111110100100101
3
Ternary
220021220000000
4
Quaternary
301033310211
5
Quinary
11301103421
6
Senary
1140411513
8
Octal
61176445
10
Decimal
12909861
12
Duodecimal
43a6b99
16
Hexadecimal
c4fd25
20
Vigesimal
40ded1
36
Base36
7opb9
md5
1448e7b6f6ebabdf2df22b2fc03eed5b
sha1
33b7973a3912d28180ae86d4efe99c7675460df1
sha256
f59cb14ae752ebc642f7a17a0a58799260bf14649a9b2ab010bdb4e4d2a03d17
sha512
61f5a65946a62c2ca34d7fc30ef91ae387a5b7a1ec7f1569af959b32456f2ef4b890d304b4212643fc73853ff88dfe5440e2aafa61a25ded26bd4b30af86e095
ripemd-160
54f534a5f599e16e34bb9aed328d9f980a5f1f90
Diameter
25819722
Circumference
81115048.952931
Area
5.2359200349527E+14
Volume
9.0126666477805E+21
Surface area
2.0943680139811E+15
Circumference
81115048.952931
Perimeter
51639444
Area
166664511039321
Diagonal
18257300.514551
Surface area
999987066235926
Volume
2.1516156711506E+21
Space diagonal
22360535.170652
Perimeter
38729583
Area
72167850234682
Altitude
11180267.585326
Surface area
72167850234682
Volume
2.5357033859631E+20
Height
6085766.8381838