81124490 (number)

81124490 is an even 8-digits composite number following 81124489 and preceding 81124491. In scientific notation, it is written as 8.1124490 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 30741840 positive integers (up to 81124490) that are relatively prime to 81124490.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-four thousand four hundred ninety

Notation

Scientific notation 8.1124490 × 10^7
Engineering notation 8.1124490 × 10^6

Prime Factorization of 81124490

Prime Factorization 2 × 5 × 19 × 426971

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81124490
Product of the distinct prime numbers

The prime factorization of 81124490 is 2 × 5 × 19 × 426971. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 50, 21, 560, 442, 7074, 8312, 57963, 38986, 400125, 825458, 1665095, 6400625, 82561117, 56382944, 918386381, 816622269, 5318409736, 3198993843

Basic calculations (n = 81124490)

Multiplication

n×y
n×2 162248980
n×3 243373470
n×4 324497960
n×5 405622450

Division

n÷y
n÷2 40562245
n÷3 27041496.666667
n÷3 20281122.5
n÷5 16224898

Exponentiation

ny
n2 6581182877760100
n3 5.3389510455502E+23
n4 4.3311968070523E+31
n5 3.5136613206174E+39

Nth Root

y√n
2√n 9006.913455785
3√n 432.89641892607
4√n 94.904759921644
5√n 38.179514009003

Divisors of 81124490

1, 2, 5, 10, 19, 38, 95, 190, 426971, 853942, 2134855, 4269710, 8112449, 16224898, 40562245, 81124490

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 -81124489
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 81124490 can be divided by 16 positive divisors. The sum of these divisors (counting 81124490) is 1, the average is 0.0625.

Base conversion 81124490

Base System Value
2 Binary 100110101011101110010001010
3 Ternary 12122122112212202
4 Quaternary 10311131302022
5 Quinary 131231440430
6 Senary 12014440202
8 Octal 465356212
10 Decimal 81124490
12 Duodecimal 23203062
16 Hexadecimal 4d5dc8a
20 Vigesimal 1570b4a
36 Base36 1cas22

Cryptographic Hash Functions

md5 9322e9850dbd2f0d82b5ab4c3ec3b500
sha1 5888a5189313a411a718a6da6abc067b10b7e3ee
sha256 1ea47f77e242764723116715418d75a182ced4fcabdb5be1245ac12c77f6b7ef
sha512 8bfab7b20453706cd58b7cac1916c59b27116e043098c2b5b63859a4c00e5790c1070d0ef51d579d48c73e6d11a8b30f25d30eb85c7c274f2f0952b92a235b7c
ripemd-160 987fb1a956e758ff9ab2260628ce815b3548925e

81124490 as geometric shapes

Circle

Radius = n
Diameter 162248980
Circumference 509720203.62044
Area 2.0675395780702E+16

Sphere

Radius = n
Volume 2.2363745843435E+24
Surface area 8.2701583122808E+16
Circumference 509720203.62044

Square

Length = n
Perimeter 324497960
Area 6581182877760100
Diagonal 114727353.9986

Cube

Length = n
Surface area 39487097266560600
Volume 5.3389510455502E+23
Space diagonal 140511738.41811

Equilateral Triangle

Length = n
Perimeter 243373470
Area 2.8497357795457E+15
Altitude 70255869.209057

Triangular Pyramid

Length = n
Surface area 2.8497357795457E+15
Volume 6.2920141478859E+22
Height 38242451.332867