81750550 is an even 8-digits composite number following 81750549
and preceding 81750551 . In scientific notation, it is written as 8.1750550 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors.
There are 27799200 positive integers (up to 81750550) that are relatively prime to 81750550.
81750550 has 32 divisors, whose sum is 146944512
The reverse of 81750550 is 05505718
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million seven hundred fifty thousand five hundred fifty
Scientific notation
8.1750550 × 10^7
Engineering notation
8.1750550 × 10^6
Prime Factorization
2 × 25 × 7 × 131 × 1783
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81750550
Product of the distinct prime numbers
The prime factorization of 81750550 is 2 × 25 × 7 × 131 × 1783.
Since it has a total of 5 prime factors.
7 , 5 , 93 , 39 , 866 , 2 , 5741 , 4777 , 40653 , 52335 , 17843 , 648980 , 2369615 , 5911783 , 78268015 , 71352365 , 70185356 , 886850121 , 2057829781 , 31261062
n×2
163501100
n×3
245251650
n×4
327002200
n×5
408752750
n÷2
40875275
n÷3
27250183.333333
n÷3
20437637.5
n÷5
16350110
n2
6683152425302500
n3
5.4635138650231E+23
n4
4.4664526339827E+31
n5
3.6513495937703E+39
2 √n
9041.6010750309
3 √n
434.00716008206
4 √n
95.087333935866
5 √n
38.238261302152
1 , 2 , 7 , 14 , 25 , 50 , 131 , 175 , 262 , 350 , 917 , 1783 , 1834 , 3275 , 3566 , 6550 , 12481 , 22925 , 24962 , 44575 , 45850 , 89150 , 233573 , 312025 , 467146 , 624050 , 1635011 , 3270022 , 5839325 , 11678650 , 40875275 , 81750550
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81750549
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81750550 can be divided by 32 positive divisors.
The sum of these divisors (counting 81750550) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111110110101000010110
3
Ternary
12200211100200011
4
Quaternary
10313312220112
5
Quinary
131412004200
6
Senary
12040110434
8
Octal
467665026
10
Decimal
81750550
12
Duodecimal
2346541a
16
Hexadecimal
4df6a16
20
Vigesimal
15aig7a
36
Base36
1co74m
md5
c68683aa520c14bd562c8beaea8e68f4
sha1
f846759af1eb05d73e7d386c818c77ad15d35056
sha256
68e4ed7a28e5e1475372ad410563df0cdbc17d071b4e3ad64b5d15060724776f
sha512
dd7cfd7b70fc1a1f5746d6815c5797cd01f7c2e31f6adcfaba7fbfed395b1a8e2d7a6d5f292aabb420e7029039a32feca5c5adcfa49c73f0f16aac0abba18c4d
ripemd-160
e87d0a74613a1dd193ebdc460890f60ca2d853fd
Diameter
163501100
Circumference
513653854.61385
Area
2.0995742562151E+16
Volume
2.2885513361524E+24
Surface area
8.3982970248605E+16
Circumference
513653854.61385
Perimeter
327002200
Area
6683152425302500
Diagonal
115612736.54146
Surface area
40098914551815000
Volume
5.4635138650231E+23
Space diagonal
141596106.1467
Perimeter
245251650
Area
2.8938898888378E+15
Altitude
70798053.07335
Surface area
2.8938898888378E+15
Volume
6.438812838441E+22
Height
38537578.847153