81421336 is an even 8-digits composite number following 81421335
and preceding 81421337 . In scientific notation, it is written as 8.1421336 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 16 positive divisors.
There are 40043040 positive integers (up to 81421336) that are relatively prime to 81421336.
81421336 has 16 divisors, whose sum is 155168640
The reverse of 81421336 is 63312418
Previous prime number is 61
Is Prime? no Number parity even Number length 8 Sum of Digits 28 Digital Root 1
Name
eighty-one million four hundred twenty-one thousand three hundred thirty-six
Scientific notation
8.1421336 × 10^7
Engineering notation
8.1421336 × 10^6
Prime Factorization
2 × 2 × 2 × 61 × 166847
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
20355334 Product of the distinct prime numbers
The prime factorization of 81421336 is 2 × 2 × 2 × 61 × 166847.
Since it has a total of 5 prime factors.
8 , 9 , 84 , 24 , 225 , 949 , 4875 , 5893 , 94287 , 74857 , 929586 , 541291 , 3724374 , 1774654 , 66507823 , 53295142 , 515475080 , 500582535 , 7573426506 , 7537367226
n×2
162842672
n×3
244264008
n×4
325685344
n×5
407106680
n÷2
40710668
n÷3
27140445.333333
n÷3
20355334
n÷5
16284267.2
n2
6629433956024896
n3
5.3977736962331E+23
n4
4.3949394577296E+31
n5
3.5784184228746E+39
2 √n9023.3771948201
3 √n433.4237859831
4 √n94.991458536124
5 √n38.207414052707
1 , 2 , 4 , 8 , 61 , 122 , 244 , 488 , 166847 , 333694 , 667388 , 1334776 , 10177667 , 20355334 , 40710668 , 81421336
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
-81421335 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 81421336 can be divided by 16 positive divisors.
The sum of these divisors (counting 81421336) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110100110010000011000
3
Ternary
12200012122002001
4
Quaternary
10312212100120
5
Quinary
131320440321
6
Senary
12025050344
8
Octal
466462030
10
Decimal
81421336
12
Duodecimal
233269b4
16
Hexadecimal
4da6418
20
Vigesimal
158hd6g
36
Base36
1ch53s
md5
d26964a9dcca5006d6fc85d6eba8b686
sha1
e47543076612f57b6747fcbc83f9e63596b540bb
sha256
55bb890503078c0674d24de027efb40fb95ad37bf7fe5841a97cb0e3aab28863
sha512
c7f7b08501df518caf3f4d084eec9e3683156303689670ff298bd960666f23a8df8325a83b06e4b5034eeb5e7ef6c7180eb877f5a3307a1354e392c4cd3a68eb
ripemd-160
b0aad7f3318bd8a1bf424275b77773ee01a1a1b7
Diameter
162842672
Circumference
511585342.04613
Area
2.0826981013707E+16
Volume
2.2610141586435E+24
Surface area
8.3307924054826E+16
Circumference
511585342.04613
Perimeter
325685344
Area
6629433956024896
Diagonal
115147157.63774
Surface area
39776603736149376
Volume
5.3977736962331E+23
Space diagonal
141025890.77214
Perimeter
244264008
Area
2.8706291093144E+15
Altitude
70512945.386068
Surface area
2.8706291093144E+15
Volume
6.361337306528E+22
Height
38382385.879246