51387947 is an odd 8-digits composite number following 51387946
and preceding 51387948 . In scientific notation, it is written as 5.1387947 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 47435016 positive integers (up to 51387947) that are relatively prime to 51387947.
51387947 has 4 divisors, whose sum is 55340880
The reverse of 51387947 is 74978315
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
fifty-one million three hundred eighty-seven thousand nine hundred forty-seven
Scientific notation
5.1387947 × 10^7
Engineering notation
5.1387947 × 10^6
Prime Factorization
13 × 3952919
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
51387947
Product of the distinct prime numbers
The prime factorization of 51387947 is 13 × 3952919.
Since it has a total of 2 prime factors.
2 , 2 , 48 , 45 , 760 , 630 , 8624 , 2958 , 32009 , 97867 , 344393 , 173898 , 3985656 , 1323283 , 62442197 , 92143218 , 771423133 , 225860028 , 8181076185 , 3790335091
n×2
102775894
n×3
154163841
n×4
205551788
n×5
256939735
n÷2
25693973.5
n÷3
17129315.666667
n÷3
12846986.75
n÷5
10277589.4
n2
2640721096874809
n3
1.3570123576798E+23
n4
6.9734079114797E+30
n5
3.583491161645E+38
2 √n
7168.5386934856
3 √n
371.78091263761
4 √n
84.667223253663
5 √n
34.84755028954
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
-51387946
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 51387947 can be divided by 4 positive divisors.
The sum of these divisors (counting 51387947) is 1, the average is 0.25.
Base
System
Value
2
Binary
11000100000001111000101011
3
Ternary
10120200210000022
4
Quaternary
3010001320223
5
Quinary
101123403242
6
Senary
5033231055
8
Octal
304017053
10
Decimal
51387947
12
Duodecimal
1526248b
16
Hexadecimal
3101e2b
20
Vigesimal
g139h7
36
Base36
ulf6z
md5
d57f8318dd303661da7c47f385d8bf08
sha1
89914086e63e76448e5fab7c300f3f49b906adcc
sha256
9c420a71a672735c7a8ac46ac165a08b97d491ef36268d5086d34e7d454396c7
sha512
cb0dd0dbe0615468d0507ff18015800767cb726bd6ff8093002524725bdd9f7af0ae15813a0d577126d8dd3c7f0a6336935e440fb1d786476e84b6cab4d8e1b4
ripemd-160
5f213a090180d495c6d04381777c4d2547971166
Diameter
102775894
Circumference
322879993.55652
Area
8.2960699981215E+15
Volume
5.6842400716234E+23
Surface area
3.3184279992486E+16
Circumference
322879993.55652
Perimeter
205551788
Area
2640721096874809
Diagonal
72673531.58991
Surface area
15844326581248854
Volume
1.3570123576798E+23
Space diagonal
89006535.100657
Perimeter
154163841
Area
1.1434657771015E+15
Altitude
44503267.550328
Surface area
1.1434657771015E+15
Volume
1.5992544004489E+22
Height
24224510.52997