81582215 (number)

81582215 is an odd 8-digits composite number following 81582214 and preceding 81582216. In scientific notation, it is written as 8.1582215 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 53539200 positive integers (up to 81582215) that are relatively prime to 81582215.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-two thousand two hundred fifteen

Notation

Scientific notation 8.1582215 × 10^7
Engineering notation 8.1582215 × 10^6

Prime Factorization of 81582215

Prime Factorization 13 × 55 × 13 × 67 × 131

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6275555
Product of the distinct prime numbers

The prime factorization of 81582215 is 13 × 55 × 13 × 67 × 131. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 95, 6, 256, 526, 1190, 8144, 38391, 46568, 918200, 71486, 5607059, 4181882, 31782698, 2417446, 759227618, 131074348, 4152231064, 938390751

Basic calculations (n = 81582215)

Multiplication

n×y
n×2 163164430
n×3 244746645
n×4 326328860
n×5 407911075

Division

n÷y
n÷2 40791107.5
n÷3 27194071.666667
n÷3 20395553.75
n÷5 16316443

Exponentiation

ny
n2 6655657804306225
n3 5.4298330595734E+23
n4 4.4297780808022E+31
n5 3.613911077903E+39

Nth Root

y√n
2√n 9032.2873625677
3√n 433.70906301137
4√n 95.038346800477
5√n 38.222500806376

Divisors of 81582215

1, 13, 55, 67, 131, 169, 715, 871, 1703, 3685, 7205, 8777, 9295, 11323, 22139, 47905, 93665, 114101, 482735, 622765, 1217645, 1483313, 6275555, 81582215

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81582214
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81582215 can be divided by 24 positive divisors. The sum of these divisors (counting 81582215) is 1, the average is 0.041666666666667.

Base conversion 81582215

Base System Value
2 Binary 100110111001101100010000111
3 Ternary 12200111210202112
4 Quaternary 10313031202013
5 Quinary 131341112330
6 Senary 12032331235
8 Octal 467154207
10 Decimal 81582215
12 Duodecimal 233a3b1b
16 Hexadecimal 4dcd887
20 Vigesimal 159hfaf
36 Base36 1ckl8n

Cryptographic Hash Functions

md5 bbb34b71e60a979335fdf817f3b28e50
sha1 0d2f66e05d97c40e9ca4a0be986a54d23f702d54
sha256 bd9b3b2a708f3444f33c939870481292fab899dfe51a2e01d912f3549cedbdf7
sha512 115169380f7e5ec3dd25f12668ee3ee77d96dd334539ae70ef48e763cd7afa670bb520305e3ff74a7c41c2d383819b363b3d531fe87f323246d528645f4dfd7d
ripemd-160 f0471835caa8b96015d067ee3a174172c2e04f45

81582215 as geometric shapes

Circle

Radius = n
Diameter 163164430
Circumference 512596174.61517
Area 2.0909365662816E+16

Sphere

Radius = n
Volume 2.2744431533566E+24
Surface area 8.3637462651264E+16
Circumference 512596174.61517

Square

Length = n
Perimeter 326328860
Area 6655657804306225
Diagonal 115374674.90144

Cube

Length = n
Surface area 39933946825837350
Volume 5.4298330595734E+23
Space diagonal 141304541.37401

Equilateral Triangle

Length = n
Perimeter 244746645
Area 2.8819843687127E+15
Altitude 70652270.687004

Triangular Pyramid

Length = n
Surface area 2.8819843687127E+15
Volume 6.3991196285587E+22
Height 38458224.967146