81265827 is an odd 8-digits composite number following 81265826
and preceding 81265828 . In scientific notation, it is written as 8.1265827 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54177216 positive integers (up to 81265827) that are relatively prime to 81265827.
81265827 has 4 divisors, whose sum is 108354440
The reverse of 81265827 is 72856218
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million two hundred sixty-five thousand eight hundred twenty-seven
Scientific notation
8.1265827 × 10^7
Engineering notation
8.1265827 × 10^6
Prime Factorization
3 × 27088609
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81265827
Product of the distinct prime numbers
The prime factorization of 81265827 is 3 × 27088609.
Since it has a total of 2 prime factors.
3 , 6 , 28 , 7 , 760 , 722 , 8015 , 5564 , 49743 , 57338 , 114970 , 227933 , 3719419 , 8433634 , 68508874 , 97155698 , 37899018 , 414573218 , 4799201785 , 4677802088
n×2
162531654
n×3
243797481
n×4
325063308
n×5
406329135
n÷2
40632913.5
n÷3
27088609
n÷3
20316456.75
n÷5
16253165.4
n2
6604134637993929
n3
5.3669046297592E+23
n4
4.3614594316751E+31
n5
3.5443760764203E+39
2 √n
9014.7560699112
3 √n
433.14767385242
4 √n
94.946069270461
5 √n
38.192808197621
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
-81265826
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 81265827 can be divided by 4 positive divisors.
The sum of these divisors (counting 81265827) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110000000010010100011
3
Ternary
12122220201202110
4
Quaternary
10312000102203
5
Quinary
131301001302
6
Senary
12021450403
8
Octal
466002243
10
Decimal
81265827
12
Duodecimal
23270a03
16
Hexadecimal
4d804a3
20
Vigesimal
157i4b7
36
Base36
1cdt43
md5
7af85596e41340693c2f7cd1cac3243a
sha1
a0aca3f8772786a4f98373ffc2eb8a8c043c01f3
sha256
fb367ee01766cdfd2b077d82d38f105ab7b324b9a72542b7bc63bd59ac3e48aa
sha512
68b79bcac9aa792e5ac5adc047251d8d0f34225a3a281fae03dcf479056b78fe7710d866bc44c512b36624362d98903dfa50c1e2570515f36ef1d1d9752035b7
ripemd-160
dc82987556e8b71331f31b21f049959e4e1b3acd
Diameter
162531654
Circumference
510608250.1822
Area
2.074750086204E+16
Volume
2.2480837543158E+24
Surface area
8.2990003448158E+16
Circumference
510608250.1822
Perimeter
325063308
Area
6604134637993929
Diagonal
114927234.70087
Surface area
39624807827963574
Volume
5.3669046297592E+23
Space diagonal
140756541.2831
Perimeter
243797481
Area
2.8596741832577E+15
Altitude
70378270.641551
Surface area
2.8596741832577E+15
Volume
6.324957762807E+22
Height
38309078.233622