81497455 (number)

81497455 is an odd 8-digits composite number following 81497454 and preceding 81497456. In scientific notation, it is written as 8.1497455 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 60048000 positive integers (up to 81497455) that are relatively prime to 81497455.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand four hundred fifty-five

Notation

Scientific notation 8.1497455 × 10^7
Engineering notation 8.1497455 × 10^6

Prime Factorization of 81497455

Prime Factorization 13 × 5 × 557 × 2251

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81497455
Product of the distinct prime numbers

The prime factorization of 81497455 is 13 × 5 × 557 × 2251. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497455)

Multiplication

n×y
n×2 162994910
n×3 244492365
n×4 325989820
n×5 407487275

Division

n÷y
n÷2 40748727.5
n÷3 27165818.333333
n÷3 20374363.75
n÷5 16299491

Exponentiation

ny
n2 6641835171477025
n3 5.4129266300487E+23
n4 4.4113974445069E+31
n5 3.5951766472082E+39

Nth Root

y√n
2√n 9027.5940870201
3√n 433.55881000762
4√n 95.013652108632
5√n 38.214555235441

Divisors of 81497455

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 -81497454
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 81497455 can be divided by 16 positive divisors. The sum of these divisors (counting 81497455) is 1, the average is 0.0625.

Base conversion 81497455

Base System Value
2 Binary 100110110111000110101101111
3 Ternary 12200100111111021
4 Quaternary 10312320311233
5 Quinary 131330404310
6 Senary 12030435011
8 Octal 466706557
10 Decimal 81497455
12 Duodecimal 23362a67
16 Hexadecimal 4db8d6f
20 Vigesimal 15973cf
36 Base36 1ciru7

Cryptographic Hash Functions

md5 cde1601e17657c27cf6688c3a0370fbe
sha1 722c2fcb4549380a3e80d545f70b4c2704b75ac3
sha256 700d31f32460b64c86ebd8adf3c6ba778d4086f912ca90776542d397c9b72d3f
sha512 4741ef273b20269ce69a9bad0a43102e5b476dc857fb8e0c183a53f602184a22e670919546ea32f1e7f6693cec8bcf42e1bfd746815053a1c4e2d8b4005f36f2
ripemd-160 08b39238dbea8de21dadaf65e2c45b18870da426

81497455 as geometric shapes

Circle

Radius = n
Diameter 162994910
Circumference 512063611.82853
Area 2.0865940581067E+16

Sphere

Radius = n
Volume 2.2673614047175E+24
Surface area 8.3463762324266E+16
Circumference 512063611.82853

Square

Length = n
Perimeter 325989820
Area 6641835171477025
Diagonal 115254806.15989

Cube

Length = n
Surface area 39851011028862150
Volume 5.4129266300487E+23
Space diagonal 141157732.74756

Equilateral Triangle

Length = n
Perimeter 244492365
Area 2.875998993124E+15
Altitude 70578866.373779

Triangular Pyramid

Length = n
Surface area 2.875998993124E+15
Volume 6.3791952102878E+22
Height 38418268.719964