51781131 is an odd 8-digits composite number following 51781130
and preceding 51781132 . In scientific notation, it is written as 5.1781131 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 33730560 positive integers (up to 51781131) that are relatively prime to 51781131.
51781131 has 16 divisors, whose sum is 58865280
The reverse of 51781131 is 13118715
Previous prime number is 257
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
fifty-one million seven hundred eighty-one thousand one hundred thirty-one
Scientific notation
5.1781131 × 10^7
Engineering notation
5.1781131 × 10^6
Prime Factorization
9 × 61 × 257 × 367
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
51781131
Product of the distinct prime numbers
The prime factorization of 51781131 is 9 × 61 × 257 × 367.
Since it has a total of 4 prime factors.
3 , 4 , 66 , 56 , 132 , 48 , 2563 , 4 , 76809 , 13743 , 468064 , 786415 , 7511671 , 393045 , 90139502 , 74423080 , 323148686 , 593355448 , 9432281802 , 1904076222
n×2
103562262
n×3
155343393
n×4
207124524
n×5
258905655
n÷2
25890565.5
n÷3
17260377
n÷3
12945282.75
n÷5
10356226.2
n2
2681285527639161
n3
1.3883999715509E+23
n4
7.1892920807272E+30
n5
3.722696750294E+38
2 √n
7195.9107137318
3 √n
372.72670553336
4 √n
84.828713969574
5 √n
34.900713561648
1 , 9 , 61 , 257 , 367 , 549 , 2313 , 3303 , 15677 , 22387 , 94319 , 141093 , 201483 , 848871 , 5753459 , 51781131
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-51781130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 51781131 can be divided by 16 positive divisors.
The sum of these divisors (counting 51781131) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11000101100001111000001011
3
Ternary
10121102202100200
4
Quaternary
3011201320023
5
Quinary
101223444011
6
Senary
5045503243
8
Octal
305417013
10
Decimal
51781131
12
Duodecimal
15411b23
16
Hexadecimal
3161e0b
20
Vigesimal
g3ccgb
36
Base36
utukr
md5
6eb0b76f9f33aac51e7c7ab5ecde4189
sha1
2315bc940d985b1fc7cd318f37317107bb2c8477
sha256
7ea46f4bddd9daeea106611e3163e8ad26871318b99ae7b399e5e1f0634fea94
sha512
aee8d5f743e5dc699a25825793b8b805c5d4d74f9ee7633d6b61a0defb58e25c1773a043bd89c4b9e2d4c7d3d77332065e2cb355c69ba0cdcaf3c70c1df2a616
ripemd-160
17e6ecac4835932de51df6467290efcb8857573e
Diameter
103562262
Circumference
325350441.48834
Area
8.4235069158078E+15
Volume
5.815716201158E+23
Surface area
3.3694027663231E+16
Circumference
325350441.48834
Perimeter
207124524
Area
2681285527639161
Diagonal
73229577.735218
Surface area
16087713165834966
Volume
1.3883999715509E+23
Space diagonal
89687549.76538
Perimeter
155343393
Area
1.1610306908675E+15
Altitude
44843774.88269
Surface area
1.1610306908675E+15
Volume
1.6362450581381E+22
Height
24409859.245073