13187989 is an odd 8-digits composite number following 13187988
and preceding 13187990 . In scientific notation, it is written as 1.3187989 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 12762540 positive integers (up to 13187989) that are relatively prime to 13187989.
13187989 has 4 divisors, whose sum is 13613440
The reverse of 13187989 is 98978131
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
thirteen million one hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
1.3187989 × 10^7
Engineering notation
1.3187989 × 10^6
Prime Factorization
31 × 425419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13187989
Product of the distinct prime numbers
The prime factorization of 13187989 is 31 × 425419.
Since it has a total of 2 prime factors.
8 , 7 , 68 , 10 , 966 , 267 , 1265 , 411 , 94184 , 19236 , 411957 , 562022 , 2092189 , 4942246 , 86790691 , 90536507 , 595980937 , 385359546 , 3227539512 , 6004219578
n×2
26375978
n×3
39563967
n×4
52751956
n×5
65939945
n÷2
6593994.5
n÷3
4395996.3333333
n÷3
3296997.25
n÷5
2637597.8
n2
173923053864121
n3
2.2936953212064E+21
n4
3.0249228665422E+28
n5
3.9892649489807E+35
2 √n
3631.527089256
3 √n
236.26144658666
4 √n
60.262153041988
5 √n
26.548238787928
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
-13187988
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 13187989 can be divided by 4 positive divisors.
The sum of these divisors (counting 13187989) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010010011101110010101
3
Ternary
220211000112001
4
Quaternary
302103232111
5
Quinary
11334003424
6
Senary
1150355301
8
Octal
62235625
10
Decimal
13187989
12
Duodecimal
44bbb31
16
Hexadecimal
c93b95
20
Vigesimal
4289j9
36
Base36
7unx1
md5
df02f45bae6cd5f3b109a68ab06d5ba6
sha1
9a09ecc2ad27fec045934fdc5d5ed0c8cbf8f494
sha256
3e697bfb325079212e671583cb77500defc21dcdd56383a0d626889b8364a6ff
sha512
5e2f55ffa63d0ac2b4a7d660b87ff61e6c350c489fb1198f997c9b1b5fdf8664bc6755ab2ae299c61d6d4a0bc9505976de5f06d02b138b1e7bc82e6790744851
ripemd-160
3720837e4ace72f4bb68d44094e9962336c388ac
Diameter
26375978
Circumference
82862578.716046
Area
5.4639538830942E+14
Volume
9.6078084942339E+21
Surface area
2.1855815532377E+15
Circumference
82862578.716046
Perimeter
52751956
Area
173923053864121
Diagonal
18650632.904227
Surface area
1043538323184726
Volume
2.2936953212064E+21
Space diagonal
22842266.997659
Perimeter
39563967
Area
75310891475049
Altitude
11421133.49883
Surface area
75310891475049
Volume
2.7031458593349E+20
Height
6216877.6347424