81330238 (number)

81330238 is an even 8-digits composite number following 81330237 and preceding 81330239. In scientific notation, it is written as 8.1330238 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 36834840 positive integers (up to 81330238) that are relatively prime to 81330238.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty thousand two hundred thirty-eight

Notation

Scientific notation 8.1330238 × 10^7
Engineering notation 8.1330238 × 10^6

Prime Factorization of 81330238

Prime Factorization 2 × 11 × 283 × 13063

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81330238
Product of the distinct prime numbers

The prime factorization of 81330238 is 2 × 11 × 283 × 13063. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 13, 37, 571, 434, 541, 4025, 90068, 28930, 331943, 432086, 3593746, 7250834, 90611088, 94950356, 626432444, 82781352, 8282511189, 945547547

Basic calculations (n = 81330238)

Multiplication

n×y
n×2 162660476
n×3 243990714
n×4 325320952
n×5 406651190

Division

n÷y
n÷2 40665119
n÷3 27110079.333333
n÷3 20332559.5
n÷5 16266047.6

Exponentiation

ny
n2 6614607613136644
n3 5.3796761145302E+23
n4 4.3753033875765E+31
n5 3.5584446583381E+39

Nth Root

y√n
2√n 9018.3278937949
3√n 433.26208072382
4√n 94.964877158847
5√n 38.198860575364

Divisors of 81330238

1, 2, 11, 22, 283, 566, 3113, 6226, 13063, 26126, 143693, 287386, 3696829, 7393658, 40665119, 81330238

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 -81330237
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 81330238 can be divided by 16 positive divisors. The sum of these divisors (counting 81330238) is 1, the average is 0.0625.

Base conversion 81330238

Base System Value
2 Binary 100110110010000000000111110
3 Ternary 12200001000010001
4 Quaternary 10312100000332
5 Quinary 131310031423
6 Senary 12023104514
8 Octal 466200076
10 Decimal 81330238
12 Duodecimal 232a213a
16 Hexadecimal 4d9003e
20 Vigesimal 15865bi
36 Base36 1cf6ta

Cryptographic Hash Functions

md5 77875ab249323a20d3ec09c2ef989d84
sha1 e9b3637b8203ce41d6b1d6bb5e21717c408f92bd
sha256 30e29e4e31841737d57bb6e5acf55b7fc078b87f41a28b2d6f522878fd8c97e5
sha512 13811965b5ef4247447835fe50490b6e922f4cc798b2dc99daad3cd0240ab8c8a444ed1ee1c2ca24b65742cdd16e8c7cfe6b8ea40a36a5ce4917fd0d8a2529e9
ripemd-160 c5aab89069424cd7d764de709be0dcfd8394bec4

81330238 as geometric shapes

Circle

Radius = n
Diameter 162660476
Circumference 511012956.43102
Area 2.0780402683809E+16

Sphere

Radius = n
Volume 2.2534334613467E+24
Surface area 8.3121610735237E+16
Circumference 511012956.43102

Square

Length = n
Perimeter 325320952
Area 6614607613136644
Diagonal 115018325.61063

Cube

Length = n
Surface area 39687645678819864
Volume 5.3796761145302E+23
Space diagonal 140868104.40767

Equilateral Triangle

Length = n
Perimeter 243990714
Area 2.8642091145211E+15
Altitude 70434052.203834

Triangular Pyramid

Length = n
Surface area 2.8642091145211E+15
Volume 6.3400091019526E+22
Height 38339441.870211