81071736 is an even 8-digits composite number following 81071735
and preceding 81071737 . In scientific notation, it is written as 8.1071736 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 32 positive divisors.
There are 26293248 positive integers (up to 81071736) that are relatively prime to 81071736.
81071736 has 32 divisors, whose sum is 208159440
The reverse of 81071736 is 63717018
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seventy-one thousand seven hundred thirty-six
Scientific notation
8.1071736 × 10^7
Engineering notation
8.1071736 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 37 × 91297
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20267934
Product of the distinct prime numbers
The prime factorization of 81071736 is 2 × 2 × 2 × 3 × 37 × 91297.
Since it has a total of 6 prime factors.
1 , 2 , 77 , 6 , 559 , 163 , 4091 , 2997 , 42275 , 17886 , 184487 , 613302 , 6906504 , 2120754 , 63489072 , 72173276 , 245100376 , 616785028 , 8707251607 , 9653376495
n×2
162143472
n×3
243215208
n×4
324286944
n×5
405358680
n÷2
40535868
n÷3
27023912
n÷3
20267934
n÷5
16214347.2
n2
6572626378053696
n3
5.3285423054821E+23
n4
4.3199417505487E+31
n5
3.5022517713586E+39
2 √n
9003.9844513415
3 √n
432.80256329892
4 √n
94.889327383755
5 √n
38.174547207516
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 37 , 74 , 111 , 148 , 222 , 296 , 444 , 888 , 91297 , 182594 , 273891 , 365188 , 547782 , 730376 , 1095564 , 2191128 , 3377989 , 6755978 , 10133967 , 13511956 , 20267934 , 27023912 , 40535868 , 81071736
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
-81071735
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 81071736 can be divided by 32 positive divisors.
The sum of these divisors (counting 81071736) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101010000111001111000
3
Ternary
12122112212111220
4
Quaternary
10311100321320
5
Quinary
131223243421
6
Senary
12013352040
8
Octal
465207170
10
Decimal
81071736
12
Duodecimal
23198620
16
Hexadecimal
4d50e78
20
Vigesimal
156dj6g
36
Base36
1c9nco
md5
e64a98c904bd939266faae4229b480c6
sha1
31d2bbc483eb94d7109ca7bbde462dd261c0fbf4
sha256
1b6976518a10437ff645116817437b69351a9c9974dccfc5051b249e9c9fc326
sha512
546b68d27ac9a6fca25900df45e636ca1ba6b71101a472a6dba844cb1aefd82bddb65893fae36673d7239491edcb9fcb6004678e9bbf5867e60eda10faccc165
ripemd-160
90f5faae02a479acd80390e9dc5acbdae1945a67
Diameter
162143472
Circumference
509388740.46274
Area
2.0648514744084E+16
Volume
2.2320145814993E+24
Surface area
8.2594058976336E+16
Circumference
509388740.46274
Perimeter
324286944
Area
6572626378053696
Diagonal
114652748.57633
Surface area
39435758268322176
Volume
5.3285423054821E+23
Space diagonal
140420365.80981
Perimeter
243215208
Area
2.8460307064891E+15
Altitude
70210182.904905
Surface area
2.8460307064891E+15
Volume
6.2797473300763E+22
Height
38217582.858777