12991009 is an odd 8-digits composite number following 12991008
and preceding 12991010 . In scientific notation, it is written as 1.2991009 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 12198720 positive integers (up to 12991009) that are relatively prime to 12991009.
12991009 has 8 divisors, whose sum is 13786848
The reverse of 12991009 is 90019921
Previous prime number is 971
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million nine hundred ninety-one thousand nine
Scientific notation
1.2991009 × 10^7
Engineering notation
1.2991009 × 10^6
Prime Factorization
17 × 971 × 787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12991009
Product of the distinct prime numbers
The prime factorization of 12991009 is 17 × 971 × 787.
Since it has a total of 3 prime factors.
10 , 7 , 69 , 49 , 950 , 964 , 1923 , 2654 , 62099 , 98847 , 909998 , 617863 , 1313138 , 7038177 , 11954369 , 34958565 , 106108127 , 76570907 , 5619957104 , 9453495860
n×2
25982018
n×3
38973027
n×4
51964036
n×5
64955045
n÷2
6495504.5
n÷3
4330336.3333333
n÷3
3247752.25
n÷5
2598201.8
n2
168766314838081
n3
2.1924447149583E+21
n4
2.8482069024026E+28
n5
3.7001081502975E+35
2 √n
3604.3042324421
3 √n
235.07924896226
4 √n
60.035857888783
5 √n
26.468454088987
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
-12991008
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 12991009 can be divided by 8 positive divisors.
The sum of these divisors (counting 12991009) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100011101000100001
3
Ternary
220110000022111
4
Quaternary
301203220201
5
Quinary
11311203014
6
Senary
1142235321
8
Octal
61435041
10
Decimal
12991009
12
Duodecimal
4425b41
16
Hexadecimal
c63a21
20
Vigesimal
413ha9
36
Base36
7qfxd
md5
251ed8352f57afc273f02d495661d912
sha1
ebc737c16541b51778728d4fbec6d393d91461e7
sha256
9429fc3461833bfe62761501b00e4736cec82e7441143995095a8a4d304220cd
sha512
9e620a3518e0d70c433b844b23c3121141a898f14116f786f79a6eb95aad18ed950bceca3e9229362b789696264f8734aa5e22cd9fe44b38b5bba944d09a7d86
ripemd-160
1cb676f5d191fc916b81aab6851457a3251460c7
Diameter
25982018
Circumference
81624916.874238
Area
5.3019501486874E+14
Volume
9.1836909465532E+21
Surface area
2.1207800594749E+15
Circumference
81624916.874238
Perimeter
51964036
Area
168766314838081
Diagonal
18372061.116711
Surface area
1012597889028486
Volume
2.1924447149583E+21
Space diagonal
22501087.629585
Perimeter
38973027
Area
73077957976430
Altitude
11250543.814792
Surface area
73077957976430
Volume
2.5838208755394E+20
Height
6124020.372237