81013755 (number)

81013755 is an odd 8-digits composite number following 81013754 and preceding 81013756. In scientific notation, it is written as 8.1013755 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 40665600 positive integers (up to 81013755) that are relatively prime to 81013755.

Interesting facts

Basic properties

Name

Name eighty-one million thirteen thousand seven hundred fifty-five

Notation

Scientific notation 8.1013755 × 10^7
Engineering notation 8.1013755 × 10^6

Prime Factorization of 81013755

Prime Factorization 3 × 5 × 17 × 317701

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81013755
Product of the distinct prime numbers

The prime factorization of 81013755 is 3 × 5 × 17 × 317701. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 4, 18, 124, 303, 1913, 371, 86914, 82933, 681715, 974132, 8202109, 2862433, 59717115, 87805380, 527307452, 626531029, 6451031074, 821955538

Basic calculations (n = 81013755)

Multiplication

n×y
n×2 162027510
n×3 243041265
n×4 324055020
n×5 405068775

Division

n÷y
n÷2 40506877.5
n÷3 27004585
n÷3 20253438.75
n÷5 16202751

Exponentiation

ny
n2 6563228499200025
n3 5.3171178564321E+23
n4 4.3075968332711E+31
n5 3.489745944894E+39

Nth Root

y√n
2√n 9000.7641342277
3√n 432.69936124038
4√n 94.872357060567
5√n 38.169085299346

Divisors of 81013755

1, 3, 5, 15, 17, 51, 85, 255, 317701, 953103, 1588505, 4765515, 5400917, 16202751, 27004585, 81013755

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 -81013754
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 81013755 can be divided by 16 positive divisors. The sum of these divisors (counting 81013755) is 1, the average is 0.0625.

Base conversion 81013755

Base System Value
2 Binary 100110101000010101111111011
3 Ternary 12122102220222110
4 Quaternary 10311002233323
5 Quinary 131214420010
6 Senary 12012223403
8 Octal 465025773
10 Decimal 81013755
12 Duodecimal 2316ab63
16 Hexadecimal 4d42bfb
20 Vigesimal 1566e7f
36 Base36 1c8em3

Cryptographic Hash Functions

md5 1ed6debb520b3e3d8c9a5f53e960404b
sha1 a99cbfb97f78ee025fb7c0e6f7aec83c2cc6893e
sha256 c251f75bb0104fdae6a397eba6bb8458b724bf32ea452d70bbb2343a8cb51729
sha512 b86f4caedbd87bc3f7ccec2af0a80ad91a93a281c20cd6d241faba8ffa316e49629956c04aeb24ec10ffdf6b7d53d96d38a21449ddf2c01946624c7bf43b6c3c
ripemd-160 b79c3e72a0f26104d7a5d35d1a090b85629ee6aa

81013755 as geometric shapes

Circle

Radius = n
Diameter 162027510
Circumference 509024435.09545
Area 2.0618990436918E+16

Sphere

Radius = n
Volume 2.2272291194718E+24
Surface area 8.2475961747672E+16
Circumference 509024435.09545

Square

Length = n
Perimeter 324055020
Area 6563228499200025
Diagonal 114570751.05977

Cube

Length = n
Surface area 39379370995200150
Volume 5.3171178564321E+23
Space diagonal 140319939.77194

Equilateral Triangle

Length = n
Perimeter 243041265
Area 2.8419613055746E+15
Altitude 70159969.885969

Triangular Pyramid

Length = n
Surface area 2.8419613055746E+15
Volume 6.266283487752E+22
Height 38190250.353257