13156981 is an odd 8-digits composite number following 13156980
and preceding 13156982 . In scientific notation, it is written as 1.3156981 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 12665520 positive integers (up to 13156981) that are relatively prime to 13156981.
13156981 has 8 divisors, whose sum is 13651200
The reverse of 13156981 is 18965131
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
thirteen million one hundred fifty-six thousand nine hundred eighty-one
Scientific notation
1.3156981 × 10^7
Engineering notation
1.3156981 × 10^6
Prime Factorization
631 × 29 × 719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
13156981
Product of the distinct prime numbers
The prime factorization of 13156981 is 631 × 29 × 719.
Since it has a total of 3 prime factors.
3 , 9 , 51 , 50 , 68 , 593 , 9987 , 2407 , 9563 , 31868 , 35569 , 271036 , 6710547 , 3757109 , 93018582 , 32450191 , 441753816 , 608530508 , 2684366961 , 5084341696
n×2
26313962
n×3
39470943
n×4
52627924
n×5
65784905
n÷2
6578490.5
n÷3
4385660.3333333
n÷3
3289245.25
n÷5
2631396.2
n2
173106149034361
n3
2.2775543138283E+21
n4
2.9965738833506E+28
n5
3.9425865648341E+35
2 √n
3627.2552984316
3 √n
236.07613291101
4 √n
60.226699215809
5 √n
26.535742825081
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
-13156980
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 13156981 can be divided by 8 positive divisors.
The sum of these divisors (counting 13156981) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010001100001001110101
3
Ternary
220202102222121
4
Quaternary
302030021311
5
Quinary
11332010411
6
Senary
1145555541
8
Octal
62141165
10
Decimal
13156981
12
Duodecimal
44a5bb1
16
Hexadecimal
c8c275
20
Vigesimal
424c91
36
Base36
7tzzp
md5
9851884984da8ec843f312fc27d476ec
sha1
71e6b04bd96c348c33f3b972772e0eeeecad698f
sha256
7b4d773cd5631c589897d30b9b4009ee6b710ea73976b51f32ad9e29e2147a18
sha512
78f588e3ea31adcd1dc45f7dce37e8e79ea3629c1c3c6c9e6ff11d514bee45c537b498f3566d0b198c82e82e8ff312d1045b569ce6d69e7b1bdd73f81db3e21d
ripemd-160
0b5ca80519ce0d37167339cd72f354c93134650a
Diameter
26313962
Circumference
82667749.706041
Area
5.4382900609757E+14
Volume
9.5401972006328E+21
Surface area
2.1753160243903E+15
Circumference
82667749.706041
Perimeter
52627924
Area
173106149034361
Diagonal
18606780.970085
Surface area
1038636894206166
Volume
2.2775543138283E+21
Space diagonal
22788559.566218
Perimeter
39470943
Area
74957161307526
Altitude
11394279.783109
Surface area
74957161307526
Volume
2.6841234997144E+20
Height
6202260.3233617