81247460 (number)

81247460 is an even 8-digits composite number following 81247459 and preceding 81247461. In scientific notation, it is written as 8.1247460 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 27856224 positive integers (up to 81247460) that are relatively prime to 81247460.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-seven thousand four hundred sixty

Notation

Scientific notation 8.1247460 × 10^7
Engineering notation 8.1247460 × 10^6

Prime Factorization of 81247460

Prime Factorization 2 × 2 × 5 × 7 × 580339

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40623730
Product of the distinct prime numbers

The prime factorization of 81247460 is 2 × 2 × 5 × 7 × 580339. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 6, 76, 39, 207, 238, 6404, 1039, 43997, 73632, 425012, 52952, 4803953, 2146678, 61738922, 99099374, 327132385, 10231966, 6265084777, 4752813157

Basic calculations (n = 81247460)

Multiplication

n×y
n×2 162494920
n×3 243742380
n×4 324989840
n×5 406237300

Division

n÷y
n÷2 40623730
n÷3 27082486.666667
n÷3 20311865
n÷5 16249492

Exponentiation

ny
n2 6601149756451600
n3 5.3632665079131E+23
n4 4.3575178107101E+31
n5 3.5403725402496E+39

Nth Root

y√n
2√n 9013.737293709
3√n 433.11503929557
4√n 94.940704093181
5√n 38.191081639829

Divisors of 81247460

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580339, 1160678, 2321356, 2901695, 4062373, 5803390, 8124746, 11606780, 16249492, 20311865, 40623730, 81247460

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 -81247459
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 81247460 can be divided by 24 positive divisors. The sum of these divisors (counting 81247460) is 1, the average is 0.041666666666667.

Base conversion 81247460

Base System Value
2 Binary 100110101111011110011100100
3 Ternary 12122212210120012
4 Quaternary 10311323303210
5 Quinary 131244404320
6 Senary 12021225352
8 Octal 465736344
10 Decimal 81247460
12 Duodecimal 23262258
16 Hexadecimal 4d7bce4
20 Vigesimal 157fid0
36 Base36 1cdexw

Cryptographic Hash Functions

md5 04e55d1605c8ea6660756c4404150578
sha1 36f9d007225372ad5d8976f4bc5dfb17cee8530b
sha256 deb75f25f9b24906197a7648c0ba54c078cf77a7c8029df0d98d63d28968804e
sha512 96313e6507da0652532f0dc938bb0a56d7e9b4c057451a99161c92b7494f64c76075463d8bba6134a40053fcffd7cc56dd35538683e028a7a6e4060ee071ce3d
ripemd-160 2ef6dd725009a8f038a10212d09e29d7cc5ca231

81247460 as geometric shapes

Circle

Radius = n
Diameter 162494920
Circumference 510492846.91766
Area 2.0738123580114E+16

Sphere

Radius = n
Volume 2.2465598214005E+24
Surface area 8.2952494320458E+16
Circumference 510492846.91766

Square

Length = n
Perimeter 324989840
Area 6601149756451600
Diagonal 114901259.84037

Cube

Length = n
Surface area 39606898538709600
Volume 5.3632665079131E+23
Space diagonal 140724728.70592

Equilateral Triangle

Length = n
Perimeter 243742380
Area 2.8583816916363E+15
Altitude 70362364.35296

Triangular Pyramid

Length = n
Surface area 2.8583816916363E+15
Volume 6.3206701950934E+22
Height 38300419.946789