13291281 is an odd 8-digits composite number following 13291280
and preceding 13291282 . In scientific notation, it is written as 1.3291281 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 8574840 positive integers (up to 13291281) that are relatively prime to 13291281.
13291281 has 8 divisors, whose sum is 15244800
The reverse of 13291281 is 18219231
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirteen million two hundred ninety-one thousand two hundred eighty-one
Scientific notation
1.3291281 × 10^7
Engineering notation
1.3291281 × 10^6
Prime Factorization
9 × 31 × 47639
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
13291281
Product of the distinct prime numbers
The prime factorization of 13291281 is 9 × 31 × 47639.
Since it has a total of 3 prime factors.
1 , 6 , 69 , 95 , 458 , 896 , 3426 , 1459 , 53657 , 36159 , 768288 , 835589 , 3023876 , 1140245 , 6120196 , 9094128 , 226153820 , 803941236 , 4822559829 , 9984891290
n×2
26582562
n×3
39873843
n×4
53165124
n×5
66456405
n÷2
6645640.5
n÷3
4430427
n÷3
3322820.25
n÷5
2658256.2
n2
176658150620961
n3
2.3480131208435E+21
n4
3.1208102180818E+28
n5
4.1479565556197E+35
2 √n
3645.7209163621
3 √n
236.87666498413
4 √n
60.379805534318
5 √n
26.589695748493
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
-13291280
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 13291281 can be divided by 8 positive divisors.
The sum of these divisors (counting 13291281) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010101100111100010001
3
Ternary
221000021012200
4
Quaternary
302230330101
5
Quinary
11400310111
6
Senary
1152513413
8
Octal
62547421
10
Decimal
13291281
12
Duodecimal
454b869
16
Hexadecimal
cacf11
20
Vigesimal
431841
36
Base36
7wvm9
md5
b903d063fefd3b9743f8b9d11598f950
sha1
92287d3532a374f53e1520f8c5384715b0a649b7
sha256
54c0ccf86283ac4af0e4fe52e5b6d0ea2c1445984951188cd9a7acfd40ef1d24
sha512
72af0aaa525937bc09956d436f975981f7f55093c1fae46e47b0d71222c91ebaec0e4cd791cda7069f418d767fa15dc1bb9d575cb4120e71afc0f050b55e0172
ripemd-160
0ce33b380ad98ebc2b2ab45b8be1db8a2df2265b
Diameter
26582562
Circumference
83511581.492795
Area
5.5498794818757E+14
Volume
9.8353343612992E+21
Surface area
2.2199517927503E+15
Circumference
83511581.492795
Perimeter
53165124
Area
176658150620961
Diagonal
18796709.851512
Surface area
1059948903725766
Volume
2.3480131208435E+21
Space diagonal
23021173.989675
Perimeter
39873843
Area
76495223111665
Altitude
11510586.994837
Surface area
76495223111665
Volume
2.7671600001057E+20
Height
6265569.9505039