81865362 is an even 8-digits composite number following 81865361
and preceding 81865363 . In scientific notation, it is written as 8.1865362 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 27288452 positive integers (up to 81865362) that are relatively prime to 81865362.
81865362 has 8 divisors, whose sum is 163730736
The reverse of 81865362 is 26356818
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million eight hundred sixty-five thousand three hundred sixty-two
Scientific notation
8.1865362 × 10^7
Engineering notation
8.1865362 × 10^6
Prime Factorization
2 × 3 × 13644227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81865362
Product of the distinct prime numbers
The prime factorization of 81865362 is 2 × 3 × 13644227.
Since it has a total of 3 prime factors.
6 , 5 , 33 , 94 , 290 , 916 , 3093 , 8548 , 29954 , 9469 , 119307 , 288034 , 5212331 , 9878718 , 84462596 , 95733203 , 228153427 , 990359403 , 9647436748 , 752399265
n×2
163730724
n×3
245596086
n×4
327461448
n×5
409326810
n÷2
40932681
n÷3
27288454
n÷3
20466340.5
n÷5
16373072.4
n2
6701937495391044
n3
5.4865653916156E+23
n4
4.4915966192128E+31
n5
3.6770618318984E+39
2 √n
9047.9479441473
3 √n
434.21024096332
4 √n
95.120701974635
5 √n
38.248995779302
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
-81865361
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 81865362 can be divided by 8 positive divisors.
The sum of these divisors (counting 81865362) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000010010101010010010
3
Ternary
12201001012011110
4
Quaternary
10320102222102
5
Quinary
131424142422
6
Senary
12042354150
8
Octal
470225222
10
Decimal
81865362
12
Duodecimal
234bb956
16
Hexadecimal
4e12a92
20
Vigesimal
15bd382
36
Base36
1cqnpu
md5
1df8abc878d5c5af037900729167c498
sha1
fc29817090c153c9300c7b2c6befb786ee010946
sha256
89454a07646d3c3e147751949515ced142ef10a02a74b7d3b8968ee195c2be59
sha512
052601f820a947116aa49bbbdd86a2fa2d6f91000cd44c9f321542c3e0981b955a384ddcd21d4f461b93bf921ab5809cb32eccc2eb733d16e042aede2f8b81fc
ripemd-160
66bd38e7a1207e431a073607c2ed665bf5c951b1
Diameter
163730724
Circumference
514375239.68534
Area
2.1054757600338E+16
Volume
2.2982071370319E+24
Surface area
8.4219030401354E+16
Circumference
514375239.68534
Perimeter
327461448
Area
6701937495391044
Diagonal
115775105.22898
Surface area
40211624972346264
Volume
5.4865653916156E+23
Space diagonal
141794966.36402
Perimeter
245596086
Area
2.902024062792E+15
Altitude
70897483.182009
Surface area
2.902024062792E+15
Volume
6.465979323058E+22
Height
38591701.742994