51991385 is an odd 8-digits composite number following 51991384
and preceding 51991386 . In scientific notation, it is written as 5.1991385 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 39623232 positive integers (up to 51991385) that are relatively prime to 51991385.
51991385 has 8 divisors, whose sum is 52656576
The reverse of 51991385 is 58319915
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
fifty-one million nine hundred ninety-one thousand three hundred eighty-five
Scientific notation
5.1991385 × 10^7
Engineering notation
5.1991385 × 10^6
Prime Factorization
115 × 293 × 1543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
51991385
Product of the distinct prime numbers
The prime factorization of 51991385 is 115 × 293 × 1543.
Since it has a total of 3 prime factors.
8 , 5 , 75 , 74 , 832 , 381 , 7062 , 6581 , 59876 , 43476 , 99301 , 494844 , 9240213 , 4084252 , 67788682 , 41674708 , 608890887 , 913997255 , 9853500834 , 7939731867
n×2
103982770
n×3
155974155
n×4
207965540
n×5
259956925
n÷2
25995692.5
n÷3
17330461.666667
n÷3
12997846.25
n÷5
10398277
n2
2703104114218225
n3
1.405381266974E+23
n4
7.3067718523035E+30
n5
3.7988918848027E+38
2 √n
7210.5051834112
3 √n
373.2305019897
4 √n
84.914693566021
5 √n
34.929010067437
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-51991384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 51991385 can be divided by 8 positive divisors.
The sum of these divisors (counting 51991385) is 1, the average is 0.125.
Base
System
Value
2
Binary
11000110010101001101011001
3
Ternary
10121211102202212
4
Quaternary
3012111031121
5
Quinary
101302211020
6
Senary
5054204505
8
Octal
306251531
10
Decimal
51991385
12
Duodecimal
154b3735
16
Hexadecimal
3195359
20
Vigesimal
g4ii95
36
Base36
uyct5
md5
5f32051587d579fa8b5773ab10698fa0
sha1
2cffad5f4b449d7e327ddd6002d0e0241a68541e
sha256
0c0e153c5c4dc571e21adff0f055b92c3fa10afa7ccc6df43fcc8c0512598c34
sha512
126e381d6acc4e994f6de1f258ab25ab7c5c98000b2e006707fae300bdd6f9fa73b4914dafd29ee7ee0817d6bba752baf3709efcdbc3bff4e34ddc3ea630dd8c
ripemd-160
5b17b387bb7db831157bc2e6938d708cbc284ce9
Diameter
103982770
Circumference
326671506.33192
Area
8.4920520271163E+15
Volume
5.8868472850911E+23
Surface area
3.3968208108465E+16
Circumference
326671506.33192
Perimeter
207965540
Area
2703104114218225
Diagonal
73526921.793561
Surface area
16218624685309350
Volume
1.405381266974E+23
Space diagonal
90051720.375874
Perimeter
155974155
Area
1.1704784159936E+15
Altitude
45025860.187937
Surface area
1.1704784159936E+15
Volume
1.6562577067165E+22
Height
24508973.931187