81162488 (number)

81162488 is an even 8-digits composite number following 81162487 and preceding 81162489. In scientific notation, it is written as 8.1162488 × 10^7. The sum of its digits is 38. It has a total of 6 prime factors and 32 positive divisors. There are 34424320 positive integers (up to 81162488) that are relatively prime to 81162488.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred sixty-two thousand four hundred eighty-eight

Notation

Scientific notation 8.1162488 × 10^7
Engineering notation 8.1162488 × 10^6

Prime Factorization of 81162488

Prime Factorization 2 × 2 × 2 × 17 × 2629 × 227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20290622
Product of the distinct prime numbers

The prime factorization of 81162488 is 2 × 2 × 2 × 17 × 2629 × 227. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 10, 81, 76, 26, 618, 5670, 3412, 4236, 5086, 244489, 17112, 5116981, 2633261, 60302604, 7667613, 654845686, 598515055, 4684495026, 7018744485

Basic calculations (n = 81162488)

Multiplication

n×y
n×2 162324976
n×3 243487464
n×4 324649952
n×5 405812440

Division

n÷y
n÷2 40581244
n÷3 27054162.666667
n÷3 20290622
n÷5 16232497.6

Exponentiation

ny
n2 6587349458350144
n3 5.3464567136515E+23
n4 4.3393172886426E+31
n5 3.5218978736765E+39

Nth Root

y√n
2√n 9009.0225884943
3√n 432.96399667222
4√n 94.9158711096
5√n 38.183089929032

Divisors of 81162488

1, 2, 4, 8, 17, 34, 68, 136, 227, 454, 908, 1816, 2629, 3859, 5258, 7718, 10516, 15436, 21032, 30872, 44693, 89386, 178772, 357544, 596783, 1193566, 2387132, 4774264, 10145311, 20290622, 40581244, 81162488

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 -81162487
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 81162488 can be divided by 32 positive divisors. The sum of these divisors (counting 81162488) is 1, the average is 0.03125.

Base conversion 81162488

Base System Value
2 Binary 100110101100111000011111000
3 Ternary 12122201111000002
4 Quaternary 10311213003320
5 Quinary 131234144423
6 Senary 12015332132
8 Octal 465470370
10 Decimal 81162488
12 Duodecimal 23221048
16 Hexadecimal 4d670f8
20 Vigesimal 1575648
36 Base36 1cbldk

Cryptographic Hash Functions

md5 82b246edbf24361b25ec278d6900fb40
sha1 d8b77f18b0b7292fd1f3b33623dc061229ffd2fc
sha256 cf839bb79d0ab7f03641495596c726c64b98215d68865bbd9ec525254a6ef5f7
sha512 fc65fd9a2460ac9b90964fa2169dabdf4bc86651ee13166d1c580880e4ac8e173dbf7d6c42e69903b960c221a31e6be9685a6c65f7876515caef76c28bc8c7cd
ripemd-160 3ede136de85a1f3b5d855637845d0cdb552ea2c6

81162488 as geometric shapes

Circle

Radius = n
Diameter 162324976
Circumference 509958952.09574
Area 2.0694768664982E+16

Sphere

Radius = n
Volume 2.2395185512458E+24
Surface area 8.2779074659926E+16
Circumference 509958952.09574

Square

Length = n
Perimeter 324649952
Area 6587349458350144
Diagonal 114781091.28554

Cube

Length = n
Surface area 39524096750100864
Volume 5.3464567136515E+23
Space diagonal 140577552.8847

Equilateral Triangle

Length = n
Perimeter 243487464
Area 2.8524059872684E+15
Altitude 70288776.44235

Triangular Pyramid

Length = n
Surface area 2.8524059872684E+15
Volume 6.3008596625722E+22
Height 38260363.761848