81124525 is an odd 8-digits composite number following 81124524
and preceding 81124526 . In scientific notation, it is written as 8.1124525 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 64899600 positive integers (up to 81124525) that are relatively prime to 81124525.
81124525 has 4 divisors, whose sum is 84369532
The reverse of 81124525 is 52542118
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred twenty-four thousand five hundred twenty-five
Scientific notation
8.1124525 × 10^7
Engineering notation
8.1124525 × 10^6
Prime Factorization
25 × 3244981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81124525
Product of the distinct prime numbers
The prime factorization of 81124525 is 25 × 3244981.
Since it has a total of 2 prime factors.
3 , 3 , 52 , 85 , 248 , 561 , 5745 , 610 , 59338 , 85689 , 712008 , 623941 , 5703334 , 6634321 , 85301808 , 71385569 , 987608861 , 979959489 , 753931191 , 3152163250
n×2
162249050
n×3
243373575
n×4
324498100
n×5
405622625
n÷2
40562262.5
n÷3
27041508.333333
n÷3
20281131.25
n÷5
16224905
n2
6581188556475625
n3
5.3389579557952E+23
n4
4.3312042815886E+31
n5
3.5136689002184E+39
2 √n
9006.9153987367
3 √n
432.89648118172
4 √n
94.904770157968
5 √n
38.179517303403
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
-81124524
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 81124525 can be divided by 4 positive divisors.
The sum of these divisors (counting 81124525) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101110010101101
3
Ternary
12122122112221001
4
Quaternary
10311131302231
5
Quinary
131231441100
6
Senary
12014440301
8
Octal
465356255
10
Decimal
81124525
12
Duodecimal
23203091
16
Hexadecimal
4d5dcad
20
Vigesimal
1570b65
36
Base36
1cas31
md5
1a58aa28779fdcc433db85137a05fdae
sha1
5346d774692468b0c1684e6d0b9163f1916bc5bc
sha256
8e5dcdb7ae71fa9748e4c8ebae503b7754d2edcf2c98300161c8f766a3da26f4
sha512
981dd236048ab0fc363a9a1d17be115ba4489c27da03dfb291f8dbcb8c3cc3c9f1544e553b91a422a5ee0042665de49fa4ef58942dd72f74ab8c36408577f00e
ripemd-160
7fcc7fcf8f6a9b400905808c908fed860f118bd4
Diameter
162249050
Circumference
509720423.53192
Area
2.0675413620913E+16
Volume
2.2363774789001E+24
Surface area
8.2701654483652E+16
Circumference
509720423.53192
Perimeter
324498100
Area
6581188556475625
Diagonal
114727403.49608
Surface area
39487131338853750
Volume
5.3389579557952E+23
Space diagonal
140511799.03989
Perimeter
243373575
Area
2.8497382385017E+15
Altitude
70255899.519946
Surface area
2.8497382385017E+15
Volume
6.2920222916878E+22
Height
38242467.832025