81574890 (number)

81574890 is an even 8-digits composite number following 81574889 and preceding 81574891. In scientific notation, it is written as 8.1574890 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 21372480 positive integers (up to 81574890) that are relatively prime to 81574890.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-four thousand eight hundred ninety

Notation

Scientific notation 8.1574890 × 10^7
Engineering notation 8.1574890 × 10^6

Prime Factorization of 81574890

Prime Factorization 2 × 15 × 83 × 181 × 181

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 450690
Product of the distinct prime numbers

The prime factorization of 81574890 is 2 × 15 × 83 × 181 × 181. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81574890)

Multiplication

n×y
n×2 163149780
n×3 244724670
n×4 326299560
n×5 407874450

Division

n÷y
n÷2 40787445
n÷3 27191630
n÷3 20393722.5
n÷5 16314978

Exponentiation

ny
n2 6654462678512100
n3 5.4283706100873E+23
n4 4.428187353971E+31
n5 3.6122889629958E+39

Nth Root

y√n
2√n 9031.8818637092
3√n 433.69608218389
4√n 95.03621343314
5√n 38.221814407081

Divisors of 81574890

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 -81574889
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 81574890 can be divided by 24 positive divisors. The sum of these divisors (counting 81574890) is 1, the average is 0.041666666666667.

Base conversion 81574890

Base System Value
2 Binary 100110111001011101111101010
3 Ternary 12200111102201020
4 Quaternary 10313023233222
5 Quinary 131340344030
6 Senary 12032233310
8 Octal 467135752
10 Decimal 81574890
12 Duodecimal 2339b836
16 Hexadecimal 4dcbbea
20 Vigesimal 159gh4a
36 Base36 1ckfl6

Cryptographic Hash Functions

md5 c950e87a6bfbc81cf2b84f4c3cb0d6bf
sha1 8f70a50b932f2b2feb5e3f2512cb74372a2ba664
sha256 52affcfbb9e3b8abde135bf957798c3ea8844bc1243163102430ac1f5afbb854
sha512 b9c16bbea019eeb6517d4d9066503778d82c1f1921c3855add10edf2ee7cfddaf3a9defb9555a8a9e9cc0a387829cc042121769419d4992a830c8c76b2f59ed3
ripemd-160 e5ab35fca7f72a98defa456a7abf569bb2700767

81574890 as geometric shapes

Circle

Radius = n
Diameter 163149780
Circumference 512550150.28279
Area 2.0905611064401E+16

Sphere

Radius = n
Volume 2.2738305639484E+24
Surface area 8.3622444257604E+16
Circumference 512550150.28279

Square

Length = n
Perimeter 326299560
Area 6654462678512100
Diagonal 115364315.78709

Cube

Length = n
Surface area 39926776071072600
Volume 5.4283706100873E+23
Space diagonal 141291854.10184

Equilateral Triangle

Length = n
Perimeter 244724670
Area 2.8814668640635E+15
Altitude 70645927.050921

Triangular Pyramid

Length = n
Surface area 2.8814668640635E+15
Volume 6.3973961153108E+22
Height 38454771.929031