81352904 is an even 8-digits composite number following 81352903
and preceding 81352905 . In scientific notation, it is written as 8.1352904 × 10^7.
The sum of its digits is 32. It has a total of 6 prime factors and 32 positive divisors.
There are 39471936 positive integers (up to 81352904) that are relatively prime to 81352904.
81352904 has 32 divisors, whose sum is 157101120
The reverse of 81352904 is 40925318
Previous prime number is 173
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million three hundred fifty-two thousand nine hundred four
Scientific notation
8.1352904 × 10^7
Engineering notation
8.1352904 × 10^6
Prime Factorization
2 × 2 × 2 × 43 × 173 × 1367
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20338226
Product of the distinct prime numbers
The prime factorization of 81352904 is 2 × 2 × 2 × 43 × 173 × 1367.
Since it has a total of 6 prime factors.
2 , 7 , 3 , 100 , 195 , 524 , 8468 , 660 , 49135 , 82506 , 776711 , 737199 , 3313252 , 2398113 , 80787416 , 65443202 , 276129508 , 112342001 , 1309150886 , 7593043809
n×2
162705808
n×3
244058712
n×4
325411616
n×5
406764520
n÷2
40676452
n÷3
27117634.666667
n÷3
20338226
n÷5
16270580.8
n2
6618294989233216
n3
5.3841751690277E+23
n4
4.3801828564509E+31
n5
3.563405954233E+39
2 √n
9019.5844693644
3 √n
433.30232572341
4 √n
94.97149293006
5 √n
38.200989473283
1 , 2 , 4 , 8 , 43 , 86 , 172 , 173 , 344 , 346 , 692 , 1367 , 1384 , 2734 , 5468 , 7439 , 10936 , 14878 , 29756 , 58781 , 59512 , 117562 , 235124 , 236491 , 470248 , 472982 , 945964 , 1891928 , 10169113 , 20338226 , 40676452 , 81352904
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81352903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81352904 can be divided by 32 positive divisors.
The sum of these divisors (counting 81352904) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110010101100011001000
3
Ternary
12200002011012112
4
Quaternary
10312111203020
5
Quinary
131311243104
6
Senary
12023401452
8
Octal
466254310
10
Decimal
81352904
12
Duodecimal
232b3288
16
Hexadecimal
4d958c8
20
Vigesimal
1589254
36
Base36
1cfoaw
md5
b21c3af9a2d539e652b7346c6cea1b81
sha1
7c363a1d293ed354f5b40f769745aa3cd7c95c81
sha256
274dac7940b1513a227a200684fe723895778e1799a61c23a3044282c20c8001
sha512
2bbb55d0951d48e3d8f687684e4cbf3723f4e99791d165ab6bfd890f1bdc271cecf7a604d10a7bace4edd64154c61b25b270527f5d63b4b5fb7811027a9adacb
ripemd-160
e8446a48a8d7a75c36308939dae987cf3f86ad5d
Diameter
162705808
Circumference
511155371.10919
Area
2.0791986917465E+16
Volume
2.2553180208877E+24
Surface area
8.3167947669861E+16
Circumference
511155371.10919
Perimeter
325411616
Area
6618294989233216
Diagonal
115050380.17524
Surface area
39709769935399296
Volume
5.3841751690277E+23
Space diagonal
140907363.07127
Perimeter
244058712
Area
2.8658057952076E+15
Altitude
70453681.535637
Surface area
2.8658057952076E+15
Volume
6.3453112885262E+22
Height
38350126.725079