81729077 is an odd 8-digits composite number following 81729076
and preceding 81729078 . In scientific notation, it is written as 8.1729077 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 81619500 positive integers (up to 81729077) that are relatively prime to 81729077.
81729077 has 4 divisors, whose sum is 81838656
The reverse of 81729077 is 77092718
Previous prime number is 751
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million seven hundred twenty-nine thousand seventy-seven
Scientific notation
8.1729077 × 10^7
Engineering notation
8.1729077 × 10^6
Prime Factorization
751 × 108827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81729077
Product of the distinct prime numbers
The prime factorization of 81729077 is 751 × 108827.
Since it has a total of 2 prime factors.
1 , 5 , 64 , 40 , 596 , 312 , 5501 , 2361 , 90765 , 33407 , 539330 , 445673 , 5933430 , 3795880 , 88556948 , 92805155 , 849526094 , 929695953 , 7957335603 , 3625068206
n×2
163458154
n×3
245187231
n×4
326916308
n×5
408645385
n÷2
40864538.5
n÷3
27243025.666667
n÷3
20432269.25
n÷5
16345815.4
n2
6679642027271929
n3
5.4592097757934E+23
n4
4.4617617612497E+31
n5
3.6465567054084E+39
2 √n
9040.4135414261
3 √n
433.96915727217
4 √n
95.081089294486
5 √n
38.236252321253
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81729076
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81729077 can be divided by 4 positive divisors.
The sum of these divisors (counting 81729077) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110001011000110101
3
Ternary
12200210021012212
4
Quaternary
10313301120311
5
Quinary
131410312302
6
Senary
12035423205
8
Octal
467613065
10
Decimal
81729077
12
Duodecimal
23454b05
16
Hexadecimal
4df1635
20
Vigesimal
15ag2dh
36
Base36
1cnqk5
md5
ccf26f33aa64de112366d0852d74d52d
sha1
fca8fcf8a43f03f03b1aa6d8f72e015b4bbbef2e
sha256
06c09015cacd8a95abf8f36cad8a7c654f425dc867d8efde83af75e8169314ab
sha512
25581bfd6926cd7b6c77908f560b3bc7449fce32f5f5a4b4f225fea7edad88dba9fa62073a20dbfe11e1bb3c98828c67423be0397d0a355dcac77747b4769e04
ripemd-160
6427d820cfc957b022e30b8b68706daa9801e9dd
Diameter
163458154
Circumference
513518935.77575
Area
2.0984714321487E+16
Volume
2.2867484434718E+24
Surface area
8.3938857285948E+16
Circumference
513518935.77575
Perimeter
326916308
Area
6679642027271929
Diagonal
115582369.13363
Surface area
40077852163631574
Volume
5.4592097757934E+23
Space diagonal
141558913.81971
Perimeter
245187231
Area
2.8923698419018E+15
Altitude
70779456.909854
Surface area
2.8923698419018E+15
Volume
6.4337404206391E+22
Height
38527456.377878