81749230 (number)

81749230 is an even 8-digits composite number following 81749229 and preceding 81749231. In scientific notation, it is written as 8.1749230 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 32658112 positive integers (up to 81749230) that are relatively prime to 81749230.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand two hundred thirty

Notation

Scientific notation 8.1749230 × 10^7
Engineering notation 8.1749230 × 10^6

Prime Factorization of 81749230

Prime Factorization 2 × 5 × 857 × 9539

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81749230
Product of the distinct prime numbers

The prime factorization of 81749230 is 2 × 5 × 857 × 9539. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 81, 27, 951, 745, 7558, 9844, 54605, 51874, 371772, 629962, 845775, 5104900, 2478903, 24861799, 945787763, 598532200, 3019021238, 9693778872

Basic calculations (n = 81749230)

Multiplication

n×y
n×2 163498460
n×3 245247690
n×4 326996920
n×5 408746150

Division

n÷y
n÷2 40874615
n÷3 27249743.333333
n÷3 20437307.5
n÷5 16349846

Exponentiation

ny
n2 6682936605592900
n3 5.4632492164603E+23
n4 4.4661641674374E+31
n5 3.6510548174159E+39

Nth Root

y√n
2√n 9041.528078815
3√n 434.00482414453
4√n 95.086950097345
5√n 38.238137817158

Divisors of 81749230

1, 2, 5, 10, 857, 1714, 4285, 8570, 9539, 19078, 47695, 95390, 8174923, 16349846, 40874615, 81749230

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 -81749229
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 81749230 can be divided by 16 positive divisors. The sum of these divisors (counting 81749230) is 1, the average is 0.0625.

Base conversion 81749230

Base System Value
2 Binary 100110111110110010011101110
3 Ternary 12200211021212021
4 Quaternary 10313312103232
5 Quinary 131411433410
6 Senary 12040100354
8 Octal 467662356
10 Decimal 81749230
12 Duodecimal 234646ba
16 Hexadecimal 4df64ee
20 Vigesimal 15aid1a
36 Base36 1co63y

Cryptographic Hash Functions

md5 0eb6edc4c70219df712483b0da9fd7e5
sha1 99dd817274a75110c8ea75e8352bde01c2d83cce
sha256 50705577119e7f6cda344d8f9429522f91256365491d4aa7094bc3a4bc4938c4
sha512 0253fa1ec4ceba5ec498add99cbf0c713cb0bc09b42ffa2863b8efb41fd2bae7a686221295cc45f11ede9f2f0bdb6b2f69be7a7550acc2e86423a98574bdc9ae
ripemd-160 22216ff8e8c81edb8f858d05d3e6ff4a3f78558e

81749230 as geometric shapes

Circle

Radius = n
Diameter 163498460
Circumference 513645560.80924
Area 2.0995064544537E+16

Sphere

Radius = n
Volume 2.2884404804216E+24
Surface area 8.3980258178148E+16
Circumference 513645560.80924

Square

Length = n
Perimeter 326996920
Area 6682936605592900
Diagonal 115610869.77956

Cube

Length = n
Surface area 40097619633557400
Volume 5.4632492164603E+23
Space diagonal 141593819.83963

Equilateral Triangle

Length = n
Perimeter 245247690
Area 2.8937964361622E+15
Altitude 70796909.919817

Triangular Pyramid

Length = n
Surface area 2.8937964361622E+15
Volume 6.4385009471187E+22
Height 38536956.593186