81663695 is an odd 8-digits composite number following 81663694
and preceding 81663696 . In scientific notation, it is written as 8.1663695 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 65330952 positive integers (up to 81663695) that are relatively prime to 81663695.
81663695 has 4 divisors, whose sum is 97996440
The reverse of 81663695 is 59636618
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million six hundred sixty-three thousand six hundred ninety-five
Scientific notation
8.1663695 × 10^7
Engineering notation
8.1663695 × 10^6
Prime Factorization
5 × 16332739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81663695
Product of the distinct prime numbers
The prime factorization of 81663695 is 5 × 16332739.
Since it has a total of 2 prime factors.
10 , 7 , 67 , 100 , 968 , 480 , 4275 , 1218 , 51484 , 20423 , 323314 , 766065 , 948922 , 7846480 , 79520680 , 81166054 , 411173425 , 986242906 , 1324569144 , 1384648607
n×2
163327390
n×3
244991085
n×4
326654780
n×5
408318475
n÷2
40831847.5
n÷3
27221231.666667
n÷3
20415923.75
n÷5
16332739
n2
6668959081053025
n3
5.4461184036259E+23
n4
4.447501522476E+31
n5
3.6319940784351E+39
2 √n
9036.7967222905
3 √n
433.85340352397
4 √n
95.062067736245
5 √n
38.230132680367
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
-81663694
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 81663695 can be divided by 4 positive divisors.
The sum of these divisors (counting 81663695) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111100001011011001111
3
Ternary
12200122221112022
4
Quaternary
10313201123033
5
Quinary
131401214240
6
Senary
12034200355
8
Octal
467413317
10
Decimal
81663695
12
Duodecimal
234230bb
16
Hexadecimal
4de16cf
20
Vigesimal
15a7j4f
36
Base36
1cmc3z
md5
c690cec740c7552ceba98435ca2b47a1
sha1
098487b89be5107dd726399de2137f781277e5d8
sha256
e60c9c55d7473198c9a415aa7bd7b7f7c8d361a50a02ab343cbbf46d23a2b19c
sha512
baf6f143aadd40d77eb1eb640111db1d48feeb6405f1fcaa77db8135d5fc715096dc5c0d148c61b4479e1a466172a9a80c5168e1699c18c9f5edfb55dc5c6fa7
ripemd-160
ce0b9d3d3e15189ae9909b4bbc504d52ac7a8af1
Diameter
163327390
Circumference
513108128.554
Area
2.0951152856127E+16
Volume
2.2812647423215E+24
Surface area
8.3804611424508E+16
Circumference
513108128.554
Perimeter
326654780
Area
6668959081053025
Diagonal
115489905.0225
Surface area
40013754486318150
Volume
5.4461184036259E+23
Space diagonal
141445668.87381
Perimeter
244991085
Area
2.8877439904954E+15
Altitude
70722834.436904
Surface area
2.8877439904954E+15
Volume
6.4183120905813E+22
Height
38496635.0075