81738688 (number)

81738688 is an even 8-digits composite number following 81738687 and preceding 81738689. In scientific notation, it is written as 8.1738688 × 10^7. The sum of its digits is 49. It has a total of 8 prime factors and 28 positive divisors. There are 39091712 positive integers (up to 81738688) that are relatively prime to 81738688.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand six hundred eighty-eight

Notation

Scientific notation 8.1738688 × 10^7
Engineering notation 8.1738688 × 10^6

Prime Factorization of 81738688

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 23 × 55529

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2554334
Product of the distinct prime numbers

The prime factorization of 81738688 is 2 × 2 × 2 × 2 × 2 × 2 × 23 × 55529. Since it has a total of 8 prime factors.

Most popular turbo-numbers

2, 8, 38, 2, 894, 568, 9147, 4580, 95546, 7938, 917263, 37269, 6591035, 9170462, 71730418, 32516674, 596177922, 667656706, 1903821808, 5984414285

Basic calculations (n = 81738688)

Multiplication

n×y
n×2 163477376
n×3 245216064
n×4 326954752
n×5 408693440

Division

n÷y
n÷2 40869344
n÷3 27246229.333333
n÷3 20434672
n÷5 16347737.6

Exponentiation

ny
n2 6681213115961344
n3 5.4611359434707E+23
n4 4.4638608700894E+31
n5 3.6487013093565E+39

Nth Root

y√n
2√n 9040.9450833417
3√n 433.98616759555
4√n 95.083884456524
5√n 38.237151563848

Divisors of 81738688

1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 184, 368, 736, 1472, 55529, 111058, 222116, 444232, 888464, 1277167, 1776928, 2554334, 3553856, 5108668, 10217336, 20434672, 40869344, 81738688

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81738687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738688 can be divided by 28 positive divisors. The sum of these divisors (counting 81738688) is 1, the average is 0.035714285714286.

Base conversion 81738688

Base System Value
2 Binary 100110111110011101111000000
3 Ternary 12200210202101211
4 Quaternary 10313303233000
5 Quinary 131411114223
6 Senary 12035535504
8 Octal 467635700
10 Decimal 81738688
12 Duodecimal 2345a594
16 Hexadecimal 4df3bc0
20 Vigesimal 15ah6e8
36 Base36 1cnxz4

Cryptographic Hash Functions

md5 5c089bfe13bed8c006fdaf0e8a750f4d
sha1 bf6ab03ca68ab978e8484dae3812aa7e97615440
sha256 c90cda096917e30ebb82e04cb269a78265e9f7690932233a184466d15e5f1a3d
sha512 ec20932daa90d403a0b39d92bdb73db7cbff871dc45375401f66d6184f43fa7d1d8225fb4537b91eb0f941b626db2db94d4b9ddc159a5ce097a55972cde787cf
ripemd-160 e27abab486d776b404d6f2f8ced94d177e705b1f

81738688 as geometric shapes

Circle

Radius = n
Diameter 163477376
Circumference 513579323.46974
Area 2.0989650042172E+16

Sphere

Radius = n
Volume 2.2875552747017E+24
Surface area 8.3958600168688E+16
Circumference 513579323.46974

Square

Length = n
Perimeter 326954752
Area 6681213115961344
Diagonal 115595961.14018

Cube

Length = n
Surface area 40087278695768064
Volume 5.4611359434707E+23
Space diagonal 141575560.56002

Equilateral Triangle

Length = n
Perimeter 245216064
Area 2.8930501432602E+15
Altitude 70787780.28001

Triangular Pyramid

Length = n
Surface area 2.8930501432602E+15
Volume 6.4360104310162E+22
Height 38531987.046728