51491491 is an odd 8-digits composite number following 51491490
and preceding 51491492 . In scientific notation, it is written as 5.1491491 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 51018984 positive integers (up to 51491491) that are relatively prime to 51491491.
51491491 has 4 divisors, whose sum is 51964000
The reverse of 51491491 is 19419415
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
fifty-one million four hundred ninety-one thousand four hundred ninety-one
Scientific notation
5.1491491 × 10^7
Engineering notation
5.1491491 × 10^6
Prime Factorization
109 × 472399
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
51491491
Product of the distinct prime numbers
The prime factorization of 51491491 is 109 × 472399.
Since it has a total of 2 prime factors.
3 , 10 , 78 , 24 , 343 , 780 , 4895 , 5467 , 48800 , 96412 , 36352 , 900044 , 280301 , 7613169 , 67068927 , 35851581 , 345922374 , 536637512 , 7448470813 , 6252649993
n×2
102982982
n×3
154474473
n×4
205965964
n×5
257457455
n÷2
25745745.5
n÷3
17163830.333333
n÷3
12872872.75
n÷5
10298298.2
n2
2651373645403081
n3
1.3652318219991E+23
n4
7.029782207538E+30
n5
3.619739672714E+38
2 √n
7175.7571725916
3 √n
372.03045141326
4 √n
84.709841061069
5 √n
34.861582179473
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
-51491490
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 51491491 can be divided by 4 positive divisors.
The sum of these divisors (counting 51491491) is 1, the average is 0.25.
Base
System
Value
2
Binary
11000100011011001010100011
3
Ternary
10120220001001021
4
Quaternary
3010123022203
5
Quinary
101140211431
6
Senary
5035350311
8
Octal
304331243
10
Decimal
51491491
12
Duodecimal
152b2397
16
Hexadecimal
311b2a3
20
Vigesimal
g1g8eb
36
Base36
unn37
md5
4ea0b6a9778b1272d2d52652ebb31fe3
sha1
17ffd7761d7222f66cef5afa340476fdcca4fd05
sha256
bc01482fd2af006194b8164c6023c2dbb582f1d83574a4427139e4c485e0cc7c
sha512
72c855ea28d912e928385b7e9dc4a008199a3bbd54d8bc9ec924834e70a2df3ec95ac1f2f09854092ebb0d069f1a368e8625f47c725d4d6ae2b5e3bfd6a1f57a
ripemd-160
226d1883146a036abfe5037b42a725ff9514cc9b
Diameter
102982982
Circumference
323530579.69597
Area
8.3295359663199E+15
Volume
5.7186696832525E+23
Surface area
3.331814386528E+16
Circumference
323530579.69597
Perimeter
205965964
Area
2651373645403081
Diagonal
72819964.919012
Surface area
15908241872418486
Volume
1.3652318219991E+23
Space diagonal
89185878.569476
Perimeter
154474473
Area
1.1480784659218E+15
Altitude
44592939.284738
Surface area
1.1480784659218E+15
Volume
1.6089411320454E+22
Height
24273321.639671