13181881 is an odd 8-digits composite number following 13181880
and preceding 13181882 . In scientific notation, it is written as 1.3181881 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 13093264 positive integers (up to 13181881) that are relatively prime to 13181881.
13181881 has 4 divisors, whose sum is 13270500
The reverse of 13181881 is 18818131
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
thirteen million one hundred eighty-one thousand eight hundred eighty-one
Scientific notation
1.3181881 × 10^7
Engineering notation
1.3181881 × 10^6
Prime Factorization
149 × 88469
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13181881
Product of the distinct prime numbers
The prime factorization of 13181881 is 149 × 88469.
Since it has a total of 2 prime factors.
1 , 6 , 26 , 25 , 84 , 980 , 2621 , 6453 , 30088 , 3333 , 285792 , 144225 , 4247496 , 9742899 , 19973044 , 23839737 , 946480596 , 959252843 , 8249036917 , 3124184040
n×2
26363762
n×3
39545643
n×4
52727524
n×5
65909405
n÷2
6590940.5
n÷3
4393960.3333333
n÷3
3295470.25
n÷5
2636376.2
n2
173761986698161
n3
2.2905098309787E+21
n4
3.0193228021292E+28
n5
3.9800353878254E+35
2 √n
3630.6860233295
3 √n
236.22496622662
4 √n
60.255174245283
5 √n
26.545779175747
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-13181880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 13181881 can be divided by 4 positive divisors.
The sum of these divisors (counting 13181881) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010010010001110111001
3
Ternary
220210201010211
4
Quaternary
302102032321
5
Quinary
11333310011
6
Senary
1150311121
8
Octal
62221671
10
Decimal
13181881
12
Duodecimal
44b84a1
16
Hexadecimal
c923b9
20
Vigesimal
427ee1
36
Base36
7uj7d
md5
6cf985c2156d022b47aa3c2a845877aa
sha1
391c7835b6d951622d71fd34d7e511257a6edde6
sha256
c3f9c70f52f999c914fe53aad84f6d47005b1c6cc3047e160da8731c5417c83c
sha512
603b8102e68ae3246cb9f976aa4428598e1c9bafa9b067df8119541025915774be27ef4f67946bb82ca400114186c043fae3ba7e7c11ee0a7b1fd65042151283
ripemd-160
cf45bf7df1ca44490e778adee82f05600fd51b09
Diameter
26363762
Circumference
82824201.02019
Area
5.4588938088411E+14
Volume
9.5944651439707E+21
Surface area
2.1835575235364E+15
Circumference
82824201.02019
Perimeter
52727524
Area
173761986698161
Diagonal
18641994.887788
Surface area
1042571920188966
Volume
2.2905098309787E+21
Space diagonal
22831687.631327
Perimeter
39545643
Area
75241147346331
Altitude
11415843.815663
Surface area
75241147346331
Volume
2.6993917230992E+20
Height
6213998.2959294