81330402 is an even 8-digits composite number following 81330401
and preceding 81330403 . In scientific notation, it is written as 8.1330402 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 27110132 positive integers (up to 81330402) that are relatively prime to 81330402.
81330402 has 8 divisors, whose sum is 162660816
The reverse of 81330402 is 20403318
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million three hundred thirty thousand four hundred two
Scientific notation
8.1330402 × 10^7
Engineering notation
8.1330402 × 10^6
Prime Factorization
2 × 3 × 13555067
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330402
Product of the distinct prime numbers
The prime factorization of 81330402 is 2 × 3 × 13555067.
Since it has a total of 3 prime factors.
6 , 7 , 72 , 60 , 6 , 633 , 4841 , 9180 , 94260 , 45713 , 786887 , 634299 , 8925266 , 5827673 , 47252197 , 78869372 , 231740755 , 856429398 , 2335891586 , 3519917144
n×2
162660804
n×3
243991206
n×4
325321608
n×5
406652010
n÷2
40665201
n÷3
27110134
n÷3
20332600.5
n÷5
16266080.4
n2
6614634289481604
n3
5.3797086584652E+23
n4
4.3753386783586E+31
n5
3.5584805359705E+39
2 √n
9018.336986385
3 √n
433.26237194365
4 √n
94.964925032272
5 √n
38.198875980724
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330401
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330402 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330402) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000011100010
3
Ternary
12200001000100010
4
Quaternary
10312100003202
5
Quinary
131310033102
6
Senary
12023105350
8
Octal
466200342
10
Decimal
81330402
12
Duodecimal
232a2256
16
Hexadecimal
4d900e2
20
Vigesimal
1586602
36
Base36
1cf6xu
md5
0dda4aec32dd2eb336265a2596022848
sha1
18e8f3ebf80902b3761257973502f3e6e0e613f3
sha256
21b33e791fd83f8a9ee1af849169733d8d9ebf8f1479f54286548e34f10e3fd5
sha512
f4357e13b8e3da7ef9a499cb6ac67aa3dc3595fe72278bf04410d17acad5438d2b1090baadbfbb7a18571865b641a6dceb9868c9775a920458b77140fe9bf6d5
ripemd-160
030ace7f6b214a10d5dc806565764761060e83f6
Diameter
162660804
Circumference
511013986.87341
Area
2.0780486490019E+16
Volume
2.2534470933184E+24
Surface area
8.3121945960074E+16
Circumference
511013986.87341
Perimeter
325321608
Area
6614634289481604
Diagonal
115018557.54166
Surface area
39687805736889624
Volume
5.3797086584652E+23
Space diagonal
140868388.464
Perimeter
243991206
Area
2.8642206657173E+15
Altitude
70434194.232001
Surface area
2.8642206657173E+15
Volume
6.3400474553479E+22
Height
38339519.180552