81497451 (number)

81497451 is an odd 8-digits composite number following 81497450 and preceding 81497452. In scientific notation, it is written as 8.1497451 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 46007904 positive integers (up to 81497451) that are relatively prime to 81497451.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1497451 × 10^7
Engineering notation 8.1497451 × 10^6

Prime Factorization of 81497451

Prime Factorization 7 × 3 × 83 × 46757

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81497451
Product of the distinct prime numbers

The prime factorization of 81497451 is 7 × 3 × 83 × 46757. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 19, 6, 475, 891, 525, 7099, 74549, 21447, 16823, 537520, 8119418, 5229706, 56846045, 14591417, 868896863, 630277319, 9321434266, 2683471710

Basic calculations (n = 81497451)

Multiplication

n×y
n×2 162994902
n×3 244492353
n×4 325989804
n×5 407487255

Division

n÷y
n÷2 40748725.5
n÷3 27165817
n÷3 20374362.75
n÷5 16299490.2

Exponentiation

ny
n2 6641834519497401
n3 5.4129258330285E+23
n4 4.4113965784387E+31
n5 3.5951757649288E+39

Nth Root

y√n
2√n 9027.5938654771
3√n 433.55880291441
4√n 95.013650942784
5√n 38.214554860317

Divisors of 81497451

1, 3, 7, 21, 83, 249, 581, 1743, 46757, 140271, 327299, 981897, 3880831, 11642493, 27165817, 81497451

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 -81497450
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 81497451 can be divided by 16 positive divisors. The sum of these divisors (counting 81497451) is 1, the average is 0.0625.

Base conversion 81497451

Base System Value
2 Binary 100110110111000110101101011
3 Ternary 12200100111111010
4 Quaternary 10312320311223
5 Quinary 131330404301
6 Senary 12030435003
8 Octal 466706553
10 Decimal 81497451
12 Duodecimal 23362a63
16 Hexadecimal 4db8d6b
20 Vigesimal 15973cb
36 Base36 1ciru3

Cryptographic Hash Functions

md5 eeb4cbb6bb9d77291ed74ac7671131fe
sha1 6000bdbbca6c171e0f712e97093d694e082d51d9
sha256 22838a613d37a6ae63c7d75638aa1a4080c06e1138d66f4f959df6bc0dceaa9f
sha512 fffd2d1121f75bbb2d6aaebfe0629c18b3dd63d7041170405de72718c0c6c3057e3281d270d5d3ae1708478e22039ae584ae2f9f2fb0aca37293cb6521468219
ripemd-160 0f14250650b5cd338390cc61571bbf0089c7886f

81497451 as geometric shapes

Circle

Radius = n
Diameter 162994902
Circumference 512063586.69579
Area 2.0865938532812E+16

Sphere

Radius = n
Volume 2.2673610708625E+24
Surface area 8.3463754131249E+16
Circumference 512063586.69579

Square

Length = n
Perimeter 325989804
Area 6641834519497401
Diagonal 115254800.50304

Cube

Length = n
Surface area 39851007116984406
Volume 5.4129258330285E+23
Space diagonal 141157725.81936

Equilateral Triangle

Length = n
Perimeter 244492353
Area 2.8759987108086E+15
Altitude 70578862.909678

Triangular Pyramid

Length = n
Surface area 2.8759987108086E+15
Volume 6.3791942709905E+22
Height 38418266.834346