81775275 is an odd 8-digits composite number following 81775274
and preceding 81775276 . In scientific notation, it is written as 8.1775275 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 43223040 positive integers (up to 81775275) that are relatively prime to 81775275.
81775275 has 24 divisors, whose sum is 136412400
The reverse of 81775275 is 57257718
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million seven hundred seventy-five thousand two hundred seventy-five
Scientific notation
8.1775275 × 10^7
Engineering notation
8.1775275 × 10^6
Prime Factorization
3 × 5 × 5 × 113 × 9649
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
16355055
Product of the distinct prime numbers
The prime factorization of 81775275 is 3 × 5 × 5 × 113 × 9649.
Since it has a total of 5 prime factors.
1 , 2 , 41 , 61 , 179 , 821 , 7603 , 4209 , 3917 , 93653 , 126221 , 447333 , 6142620 , 4139233 , 44084783 , 83982971 , 145907552 , 837831087 , 5254549532 , 8432169864
n×2
163550550
n×3
245325825
n×4
327101100
n×5
408876375
n÷2
40887637.5
n÷3
27258425
n÷3
20443818.75
n÷5
16355055
n2
6687195601325625
n3
5.4684725927719E+23
n4
4.4718585010389E+31
n5
3.6568745868354E+39
2 √n
9042.968262689
3 √n
434.05091002376
4 √n
95.094522779648
5 √n
38.240574012352
1 , 3 , 5 , 15 , 25 , 75 , 113 , 339 , 565 , 1695 , 2825 , 8475 , 9649 , 28947 , 48245 , 144735 , 241225 , 723675 , 1090337 , 3271011 , 5451685 , 16355055 , 27258425 , 81775275
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81775274
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81775275 can be divided by 24 positive divisors.
The sum of these divisors (counting 81775275) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111111100101010101011
3
Ternary
12200212121120220
4
Quaternary
10313330222223
5
Quinary
131413302100
6
Senary
12040421123
8
Octal
467745253
10
Decimal
81775275
12
Duodecimal
234777a3
16
Hexadecimal
4dfcaab
20
Vigesimal
15b1i3f
36
Base36
1coq7f
md5
cf47c841a37db2abf760b69663b6f7b8
sha1
9c47ac9cc35d85ab4883f9f43406386747137472
sha256
98229787b7b63c181d18c57fa534bae04c08e15778d45bc8d77d2c6531fdee3d
sha512
ed8b879164ff49cd0e2a3a8c7580f256a47efc751894e4702fbec7b3bd510b8fe2647d0c10547b37ec768d99f0ee90b222ad331ff97dc5b12f3774d00e9be040
ripemd-160
4db07623d7294611ac3b83b13da01044d7e2a537
Diameter
163550550
Circumference
513809206.37057
Area
2.1008444574243E+16
Volume
2.2906284431746E+24
Surface area
8.403377829697E+16
Circumference
513809206.37057
Perimeter
327101100
Area
6687195601325625
Diagonal
115647702.97179
Surface area
40123173607953750
Volume
5.4684725927719E+23
Space diagonal
141638931.10292
Perimeter
245325825
Area
2.8956406354118E+15
Altitude
70819465.551459
Surface area
2.8956406354118E+15
Volume
6.4446567551364E+22
Height
38549234.32393