81362488 is an even 8-digits composite number following 81362487
and preceding 81362489 . In scientific notation, it is written as 8.1362488 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 16 positive divisors.
There are 40551648 positive integers (up to 81362488) that are relatively prime to 81362488.
81362488 has 16 divisors, whose sum is 153040680
The reverse of 81362488 is 88426318
Previous prime number is 317
Is Prime? no Number parity even Number length 8 Sum of Digits 40 Digital Root 4
Name
eighty-one million three hundred sixty-two thousand four hundred eighty-eight
Scientific notation
8.1362488 × 10^7
Engineering notation
8.1362488 × 10^6
Prime Factorization
2 × 2 × 2 × 317 × 32083
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
20340622 Product of the distinct prime numbers
The prime factorization of 81362488 is 2 × 2 × 2 × 317 × 32083.
Since it has a total of 5 prime factors.
2 , 1 , 73 , 17 , 225 , 183 , 4258 , 7544 , 10547 , 86002 , 620727 , 460886 , 8590441 , 583854 , 68566880 , 57653168 , 117454791 , 207875061 , 9766631994 , 2404703971
n×2
162724976
n×3
244087464
n×4
325449952
n×5
406812440
n÷2
40681244
n÷3
27120829.333333
n÷3
20340622
n÷5
16272497.6
n2
6619854453550144
n3
5.3860782853872E+23
n4
4.3822472986188E+31
n5
3.565505432469E+39
2 √n9020.1157420512
3 √n433.31934050806
4 √n94.974289900221
5 √n38.201889505153
1 , 2 , 4 , 8 , 317 , 634 , 1268 , 2536 , 32083 , 64166 , 128332 , 256664 , 10170311 , 20340622 , 40681244 , 81362488
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81362487 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81362488 can be divided by 16 positive divisors.
The sum of these divisors (counting 81362488) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010111111000111000
3
Ternary
12200002122100111
4
Quaternary
10312113320320
5
Quinary
131312044423
6
Senary
12023514104
8
Octal
466277070
10
Decimal
81362488
12
Duodecimal
232b8934
16
Hexadecimal
4d97e38
20
Vigesimal
158a648
36
Base36
1cfvp4
md5
7391820c7ecb575b2b3c499dd2490eb3
sha1
b113961106308b9d405852ecbe94f9d419e42f3d
sha256
83be4902e9f0b1ded2e32872bfead2489d83172f64f431ec44607dd9055ac135
sha512
e013c7dec8a5e86078460bd9dc398ac334e34596d1475510e6d2098d09a9f6091d8b4d9d4d42523a5e8b49b2e286955230d65f36384d77eae3b7f858b8a5110f
ripemd-160
bc0a867b0c8ca9db68ef692c70963f4fed1e5cab
Diameter
162724976
Circumference
511215589.15718
Area
2.0796886119107E+16
Volume
2.2561151964043E+24
Surface area
8.3187544476427E+16
Circumference
511215589.15718
Perimeter
325449952
Area
6619854453550144
Diagonal
115063933.99802
Surface area
39719126721300864
Volume
5.3860782853872E+23
Space diagonal
140923963.04621
Perimeter
244087464
Area
2.866481063065E+15
Altitude
70461981.523107
Surface area
2.866481063065E+15
Volume
6.3475541326648E+22
Height
38354644.666006