12691805 is an odd 8-digits composite number following 12691804
and preceding 12691806 . In scientific notation, it is written as 1.2691805 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 8619072 positive integers (up to 12691805) that are relatively prime to 12691805.
12691805 has 16 divisors, whose sum is 17573760
The reverse of 12691805 is 50819621
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million six hundred ninety-one thousand eight hundred five
Scientific notation
1.2691805 × 10^7
Engineering notation
1.2691805 × 10^6
Prime Factorization
5 × 7 × 107 × 3389
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12691805
Product of the distinct prime numbers
The prime factorization of 12691805 is 5 × 7 × 107 × 3389.
Since it has a total of 4 prime factors.
6 , 7 , 62 , 36 , 366 , 130 , 5317 , 7737 , 6951 , 69469 , 769910 , 924036 , 7182593 , 6282363 , 94911663 , 84833071 , 649115214 , 76568085 , 7139257585 , 8990592378
n×2
25383610
n×3
38075415
n×4
50767220
n×5
63459025
n÷2
6345902.5
n÷3
4230601.6666667
n÷3
3172951.25
n÷5
2538361
n2
161081914158025
n3
2.0444202435204E+21
n4
2.5947383068813E+28
n5
3.2931912616968E+35
2 √n
3562.5559644727
3 √n
233.26046137083
4 √n
59.687150748488
5 √n
26.345392802938
1 , 5 , 7 , 35 , 107 , 535 , 749 , 3389 , 3745 , 16945 , 23723 , 118615 , 362623 , 1813115 , 2538361 , 12691805
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
-12691804
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 12691805 can be divided by 16 positive divisors.
The sum of these divisors (counting 12691805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000011010100101011101
3
Ternary
212212210212212
4
Quaternary
300122211131
5
Quinary
11222114210
6
Senary
1132010205
8
Octal
60324535
10
Decimal
12691805
12
Duodecimal
4300965
16
Hexadecimal
c1a95d
20
Vigesimal
3j69a5
36
Base36
7k125
md5
8efb70ead3b0dc40e0fd05afd741f76a
sha1
00746cea390f7b718873195386c2a45a4b309774
sha256
f9695c5131e7bfe78303ca23ad3dfa24ddb9e6660cb3a4ab70f0d400a9ec9e7b
sha512
663fab1cb8b02a93c3617790f4295c40b2bd10b08ba1bb2b3707cbfc7a6c0386a2e36705cf775710577bda1173c5ded62b67feb698ae3dbdd8e7bab06afdc98b
ripemd-160
edf2e27015a0a3b7da157220ffb56882a4a3bddf
Diameter
25383610
Circumference
79744962.697588
Area
5.0605375814503E+14
Volume
8.5636474905252E+21
Surface area
2.0242150325801E+15
Circumference
79744962.697588
Perimeter
50767220
Area
161081914158025
Diagonal
17948922.761995
Surface area
966491484948150
Volume
2.0444202435204E+21
Space diagonal
21982851.099757
Perimeter
38075415
Area
69750514875537
Altitude
10991425.549878
Surface area
69750514875537
Volume
2.4093723629805E+20
Height
5982974.2539982