81001490 (number)

81001490 is an even 8-digits composite number following 81001489 and preceding 81001491. In scientific notation, it is written as 8.1001490 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 31789056 positive integers (up to 81001490) that are relatively prime to 81001490.

Interesting facts

Basic properties

Name

Name eighty-one million one thousand four hundred ninety

Notation

Scientific notation 8.1001490 × 10^7
Engineering notation 8.1001490 × 10^6

Prime Factorization of 81001490

Prime Factorization 2 × 5 × 53 × 152833

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81001490
Product of the distinct prime numbers

The prime factorization of 81001490 is 2 × 5 × 53 × 152833. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 54, 47, 700, 485, 5767, 7364, 49631, 43864, 941626, 344481, 4039466, 5283068, 41255312, 37216597, 995767873, 81199641, 2820198676, 7632622007

Basic calculations (n = 81001490)

Multiplication

n×y
n×2 162002980
n×3 243004470
n×4 324005960
n×5 405007450

Division

n÷y
n÷2 40500745
n÷3 27000496.666667
n÷3 20250372.5
n÷5 16200298

Exponentiation

ny
n2 6561241382220100
n3 5.3147032820949E+23
n4 4.3049888475758E+31
n5 3.4871051108702E+39

Nth Root

y√n
2√n 9000.0827773971
3√n 432.67752410294
4√n 94.868766079238
5√n 38.167929514916

Divisors of 81001490

1, 2, 5, 10, 53, 106, 265, 530, 152833, 305666, 764165, 1528330, 8100149, 16200298, 40500745, 81001490

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 -81001489
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 81001490 can be divided by 16 positive divisors. The sum of these divisors (counting 81001490) is 1, the average is 0.0625.

Base conversion 81001490

Base System Value
2 Binary 100110100111111110000010010
3 Ternary 12122102022011012
4 Quaternary 10310333300102
5 Quinary 131214021430
6 Senary 12012050522
8 Octal 464776022
10 Decimal 81001490
12 Duodecimal 23163a42
16 Hexadecimal 4d3fc12
20 Vigesimal 15653ea
36 Base36 1c855e

Cryptographic Hash Functions

md5 c3b13bc4ddd6dc3f545b3d3dbd63a23e
sha1 64cec0fed9de90135ecba51ff941210254c59896
sha256 c7b3188f2df033adc1d5d6027d9a93d3d5775621eee7a4010fac3c4b2dc57b17
sha512 9e28b6d215102a4eb6e8a8917db72eb32f0ffead58acf20698284cd734bd5953f6935f9b817731ad77f0cc1edaed695a14e1be5e5dca94deeec0318a0a5e1673
ripemd-160 bf91f59ddaf8ae81d94bfd68725a1c6c76125349

81001490 as geometric shapes

Circle

Radius = n
Diameter 162002980
Circumference 508947371.82765
Area 2.0612747724812E+16

Sphere

Radius = n
Volume 2.2262177049385E+24
Surface area 8.2450990899248E+16
Circumference 508947371.82765

Square

Length = n
Perimeter 324005960
Area 6561241382220100
Diagonal 114553405.73043

Cube

Length = n
Surface area 39367448293320600
Volume 5.3147032820949E+23
Space diagonal 140298696.16878

Equilateral Triangle

Length = n
Perimeter 243004470
Area 2.8411008586822E+15
Altitude 70149348.084391

Triangular Pyramid

Length = n
Surface area 2.8411008586822E+15
Volume 6.2634378846061E+22
Height 38184468.57681