81765624 (number)

81765624 is an even 8-digits composite number following 81765623 and preceding 81765625. In scientific notation, it is written as 8.1765624 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 26926176 positive integers (up to 81765624) that are relatively prime to 81765624.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred sixty-five thousand six hundred twenty-four

Notation

Scientific notation 8.1765624 × 10^7
Engineering notation 8.1765624 × 10^6

Prime Factorization of 81765624

Prime Factorization 2 × 2 × 2 × 3 × 83 × 41047

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20441406
Product of the distinct prime numbers

The prime factorization of 81765624 is 2 × 2 × 2 × 3 × 83 × 41047. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 5, 68, 89, 801, 884, 611, 338, 66659, 31995, 704116, 950878, 6820748, 6045454, 10301206, 99734972, 563909932, 207670152, 163137116, 1194106940

Basic calculations (n = 81765624)

Multiplication

n×y
n×2 163531248
n×3 245296872
n×4 327062496
n×5 408828120

Division

n÷y
n÷2 40882812
n÷3 27255208
n÷3 20441406
n÷5 16353124.8

Exponentiation

ny
n2 6685617268109376
n3 5.4665366775214E+23
n4 4.4697478255642E+31
n5 3.654717200799E+39

Nth Root

y√n
2√n 9042.4346279086
3√n 434.03383399787
4√n 95.091716925864
5√n 38.239671350262

Divisors of 81765624

1, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 1992, 41047, 82094, 123141, 164188, 246282, 328376, 492564, 985128, 3406901, 6813802, 10220703, 13627604, 20441406, 27255208, 40882812, 81765624

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81765623
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81765624 can be divided by 32 positive divisors. The sum of these divisors (counting 81765624) is 1, the average is 0.03125.

Base conversion 81765624

Base System Value
2 Binary 100110111111010010011111000
3 Ternary 12200212010100110
4 Quaternary 10313322103320
5 Quinary 131412444444
6 Senary 12040304320
8 Octal 467722370
10 Decimal 81765624
12 Duodecimal 234720a0
16 Hexadecimal 4dfa4f8
20 Vigesimal 15b0e14
36 Base36 1coirc

Cryptographic Hash Functions

md5 bd5036f21943e964168862559d6e0109
sha1 896bf99d5d2a454e7aa82aa3507e4fcffb1fc94f
sha256 f2182fdb76688ff0dc7e4cef032695393a9c540202c61807fdf32605ea63f766
sha512 9d75c58896b0b58ac9ed723fe0271f724c64685559d38e208fd7981b55aa8b1c913895a90581d8834b2ec7aa73ad89b1907b1ac9cc374c3eaeb82f2c21141c7d
ripemd-160 e4f364a3e091f80e7a8f8f767a284d75e1682d9c

81765624 as geometric shapes

Circle

Radius = n
Diameter 163531248
Circumference 513748567.34917
Area 2.1003486094205E+16

Sphere

Radius = n
Volume 2.2898175288907E+24
Surface area 8.4013944376822E+16
Circumference 513748567.34917

Square

Length = n
Perimeter 327062496
Area 6685617268109376
Diagonal 115634054.3967

Cube

Length = n
Surface area 40113703608656256
Volume 5.4665366775214E+23
Space diagonal 141622215.08057

Equilateral Triangle

Length = n
Perimeter 245296872
Area 2.8949571970813E+15
Altitude 70811107.540287

Triangular Pyramid

Length = n
Surface area 2.8949571970813E+15
Volume 6.4423752571339E+22
Height 38544684.7989