51397985 is an odd 8-digits composite number following 51397984
and preceding 51397986 . In scientific notation, it is written as 5.1397985 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 38953728 positive integers (up to 51397985) that are relatively prime to 51397985.
51397985 has 16 divisors, whose sum is 64976256
The reverse of 51397985 is 58979315
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
fifty-one million three hundred ninety-seven thousand nine hundred eighty-five
Scientific notation
5.1397985 × 10^7
Engineering notation
5.1397985 × 10^6
Prime Factorization
23 × 5 × 107 × 4177
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
51397985
Product of the distinct prime numbers
The prime factorization of 51397985 is 23 × 5 × 107 × 4177.
Since it has a total of 4 prime factors.
3 , 2 , 38 , 64 , 963 , 428 , 9286 , 7479 , 74823 , 5487 , 44050 , 872621 , 8329894 , 3864874 , 36331050 , 53952177 , 240826849 , 372666179 , 7865978405 , 8741986643
n×2
102795970
n×3
154193955
n×4
205591940
n×5
256989925
n÷2
25698992.5
n÷3
17132661.666667
n÷3
12849496.25
n÷5
10279597
n2
2641752862060225
n3
1.3578077397788E+23
n4
6.9788581842034E+30
n5
3.5869924826881E+38
2 √n
7169.2388019929
3 √n
371.80511866288
4 √n
84.6713576246
5 √n
34.848911590786
1 , 5 , 23 , 107 , 115 , 535 , 2461 , 4177 , 12305 , 20885 , 96071 , 446939 , 480355 , 2234695 , 10279597 , 51397985
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
-51397984
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 51397985 can be divided by 16 positive divisors.
The sum of these divisors (counting 51397985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11000100000100010101100001
3
Ternary
10120201021210002
4
Quaternary
3010010111201
5
Quinary
101124213420
6
Senary
5033345345
8
Octal
304042541
10
Decimal
51397985
12
Duodecimal
15268255
16
Hexadecimal
3104561
20
Vigesimal
g14ej5
36
Base36
ulmxt
md5
15bb61dbe0a0fd39ffda50c1c5c8e1fb
sha1
5fa75e0bab0240defca11890d51dbffdd4a8e41d
sha256
6ff75a210f95337d94db90da68e20df3887aec0db43be1ed0dbfe898a41b777c
sha512
fe49d6442a5710b4d2a3c0f035a6f764322b1fcdb032b528027d0231204b5c452711620290bd62580d6ca54332da735ce75573c44ef2686e44a4ac57bfee8be8
ripemd-160
69054a302e6dab5a9c3b639d9da4068ed11c2d0c
Diameter
102795970
Circumference
322943064.17064
Area
8.2993113840482E+15
Volume
5.6875717603685E+23
Surface area
3.3197245536193E+16
Circumference
322943064.17064
Perimeter
205591940
Area
2641752862060225
Diagonal
72687727.465649
Surface area
15850517172361350
Volume
1.3578077397788E+23
Space diagonal
89023921.426663
Perimeter
154193955
Area
1.1439125445322E+15
Altitude
44511960.713332
Surface area
1.1439125445322E+15
Volume
1.6001917672419E+22
Height
24229242.48855