81121593 is an odd 8-digits composite number following 81121592
and preceding 81121594 . In scientific notation, it is written as 8.1121593 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 46355184 positive integers (up to 81121593) that are relatively prime to 81121593.
81121593 has 8 divisors, whose sum is 123613888
The reverse of 81121593 is 39512118
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million one hundred twenty-one thousand five hundred ninety-three
Scientific notation
8.1121593 × 10^7
Engineering notation
8.1121593 × 10^6
Prime Factorization
3 × 7 × 3862933
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81121593
Product of the distinct prime numbers
The prime factorization of 81121593 is 3 × 7 × 3862933.
Since it has a total of 3 prime factors.
9 , 8 , 19 , 86 , 902 , 105 , 1001 , 3121 , 24363 , 87666 , 430426 , 629407 , 8067896 , 174932 , 65311507 , 51803641 , 741530554 , 712301010 , 2479777727 , 906224875
n×2
162243186
n×3
243364779
n×4
324486372
n×5
405607965
n÷2
40560796.5
n÷3
27040531
n÷3
20280398.25
n÷5
16224318.6
n2
6580712850857649
n3
5.3383790953714E+23
n4
4.3305781625443E+31
n5
3.5130339915661E+39
2 √n
9006.7526334412
3 √n
432.89126587527
4 √n
94.90391263505
5 √n
38.179241322833
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
-81121592
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 81121593 can be divided by 8 positive divisors.
The sum of these divisors (counting 81121593) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011101000100111001
3
Ternary
12122122101220110
4
Quaternary
10311131010321
5
Quinary
131231342333
6
Senary
12014414533
8
Octal
465350471
10
Decimal
81121593
12
Duodecimal
23201449
16
Hexadecimal
4d5d139
20
Vigesimal
15703jd
36
Base36
1captl
md5
9b02342ff1fc491e0039647fc894aa1a
sha1
56a02594376d317d7d15a725076bdb8079bf37ce
sha256
c9a84f2a79850540b8d45ccaea8c4bdd20d0a2413421d91dd2007249d6e8ebf5
sha512
6549da23375ce103f3e45dde6c999e9e5a8e5efb6e68a79ef8cf01cf1722686452d5b7a3cacdad19e822f41e711d54033e442b30844416e3c9ef9281a7c9eb47
ripemd-160
dfa429e6890fbf3be018c0fc637d262d9deb9667
Diameter
162243186
Circumference
509702001.2326
Area
2.0673919147638E+16
Volume
2.2361350064128E+24
Surface area
8.2695676590553E+16
Circumference
509702001.2326
Perimeter
324486372
Area
6580712850857649
Diagonal
114723257.02191
Surface area
39484277105145894
Volume
5.3383790953714E+23
Space diagonal
140506720.66692
Perimeter
243364779
Area
2.8495322519267E+15
Altitude
70253360.333462
Surface area
2.8495322519267E+15
Volume
6.2913400981361E+22
Height
38241085.67397