81497140 (number)

81497140 is an even 8-digits composite number following 81497139 and preceding 81497141. In scientific notation, it is written as 8.1497140 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 31547040 positive integers (up to 81497140) that are relatively prime to 81497140.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand one hundred forty

Notation

Scientific notation 8.1497140 × 10^7
Engineering notation 8.1497140 × 10^6

Prime Factorization of 81497140

Prime Factorization 2 × 2 × 5 × 31 × 131447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40748570
Product of the distinct prime numbers

The prime factorization of 81497140 is 2 × 2 × 5 × 31 × 131447. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 2, 39, 29, 15, 27, 1825, 5988, 80696, 20612, 884346, 112195, 6763508, 8265430, 1667914, 49224644, 32835941, 517159329, 189747959, 1486521213

Basic calculations (n = 81497140)

Multiplication

n×y
n×2 162994280
n×3 244491420
n×4 325988560
n×5 407485700

Division

n÷y
n÷2 40748570
n÷3 27165713.333333
n÷3 20374285
n÷5 16299428

Exponentiation

ny
n2 6641783828179600
n3 5.4128638649489E+23
n4 4.4113292420268E+31
n5 3.5951071682355E+39

Nth Root

y√n
2√n 9027.5766404944
3√n 433.55825141676
4√n 95.013560297962
5√n 38.214525694388

Divisors of 81497140

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 131447, 262894, 525788, 657235, 1314470, 2628940, 4074857, 8149714, 16299428, 20374285, 40748570, 81497140

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 -81497139
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 81497140 can be divided by 24 positive divisors. The sum of these divisors (counting 81497140) is 1, the average is 0.041666666666667.

Base conversion 81497140

Base System Value
2 Binary 100110110111000110000110100
3 Ternary 12200100111001121
4 Quaternary 10312320300310
5 Quinary 131330402030
6 Senary 12030433324
8 Octal 466706064
10 Decimal 81497140
12 Duodecimal 23362844
16 Hexadecimal 4db8c34
20 Vigesimal 15972h0
36 Base36 1cirlg

Cryptographic Hash Functions

md5 3f7aaec16accba8d5780ecca39514df2
sha1 938b6fd06aaab0a30cc26d8e6968db880d1f8b47
sha256 eab9fe3ffbe64634714a776264319ccf2180f61eaf544e61442066d3225f615f
sha512 05ce6e7105fd8544299b78a755953419f712969727f6c3f22b15e466a335c93e35e4bbcfd05c91c2e7a902b1ccf268e08287d3edc7df204da2ce5e6cc4df5e1a
ripemd-160 8f612f90ae06904aa6b37a4e4d763fb496703777

81497140 as geometric shapes

Circle

Radius = n
Diameter 162994280
Circumference 512061632.62516
Area 2.0865779281341E+16

Sphere

Radius = n
Volume 2.267335113734E+24
Surface area 8.3463117125362E+16
Circumference 512061632.62516

Square

Length = n
Perimeter 325988560
Area 6641783828179600
Diagonal 115254360.68262

Cube

Length = n
Surface area 39850702969077600
Volume 5.4128638649489E+23
Space diagonal 141157187.15155

Equilateral Triangle

Length = n
Perimeter 244491420
Area 2.8759767608241E+15
Altitude 70578593.575777

Triangular Pyramid

Length = n
Surface area 2.8759767608241E+15
Volume 6.3791212409083E+22
Height 38418120.22754