81489430 (number)

81489430 is an even 8-digits composite number following 81489429 and preceding 81489431. In scientific notation, it is written as 8.1489430 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors. There are 29562720 positive integers (up to 81489430) that are relatively prime to 81489430.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand four hundred thirty

Notation

Scientific notation 8.1489430 × 10^7
Engineering notation 8.1489430 × 10^6

Prime Factorization of 81489430

Prime Factorization 2 × 11 × 5 × 1019 × 727

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81489430
Product of the distinct prime numbers

The prime factorization of 81489430 is 2 × 11 × 5 × 1019 × 727. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 5, 84, 83, 53, 242, 6837, 2790, 86153, 37825, 617493, 338769, 5581010, 4355806, 75241961, 18118203, 792698406, 388694860, 4163996290, 6872220708

Basic calculations (n = 81489430)

Multiplication

n×y
n×2 162978860
n×3 244468290
n×4 325957720
n×5 407447150

Division

n÷y
n÷2 40744715
n÷3 27163143.333333
n÷3 20372357.5
n÷5 16297886

Exponentiation

ny
n2 6640527201724900
n3 5.4113277656806E+23
n4 4.4096601516848E+31
n5 3.5934069225451E+39

Nth Root

y√n
2√n 9027.1496054956
3√n 433.54457879162
4√n 95.01131303953
5√n 38.213802613447

Divisors of 81489430

1, 2, 5, 10, 11, 22, 55, 110, 727, 1019, 1454, 2038, 3635, 5095, 7270, 7997, 10190, 11209, 15994, 22418, 39985, 56045, 79970, 112090, 740813, 1481626, 3704065, 7408130, 8148943, 16297886, 40744715, 81489430

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489429
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489430 can be divided by 32 positive divisors. The sum of these divisors (counting 81489430) is 1, the average is 0.03125.

Base conversion 81489430

Base System Value
2 Binary 100110110110110111000010110
3 Ternary 12200100002111001
4 Quaternary 10312312320112
5 Quinary 131330130210
6 Senary 12030333514
8 Octal 466667026
10 Decimal 81489430
12 Duodecimal 2335a29a
16 Hexadecimal 4db6e16
20 Vigesimal 15963ba
36 Base36 1cilna

Cryptographic Hash Functions

md5 235b5f6f59c0914078c20a523d0967d3
sha1 3c94d17c251553562fd299d9101b5bb88f18f5b6
sha256 cbc0754b41dd3ea1104adcc47968f891fab84367f640961b63bf8c95a7d1d84e
sha512 7f1e8ef833b8d048506ddba6982dd780d070f57b360717019f88b6b57a737b5469c080a4db9b27e51c0e58c5ab4c712740e99dafae7f60ee6dfada8010641a5d
ripemd-160 6cd799ee257a36c02c10f6b93ef55f42617947a9

81489430 as geometric shapes

Circle

Radius = n
Diameter 162978860
Circumference 512013189.26644
Area 2.0861831472902E+16

Sphere

Radius = n
Volume 2.2666916739771E+24
Surface area 8.3447325891609E+16
Circumference 512013189.26644

Square

Length = n
Perimeter 325957720
Area 6640527201724900
Diagonal 115243457.09605

Cube

Length = n
Surface area 39843163210349400
Volume 5.4113277656806E+23
Space diagonal 141143833.03983

Equilateral Triangle

Length = n
Perimeter 244468290
Area 2.8754326256077E+15
Altitude 70571916.519914

Triangular Pyramid

Length = n
Surface area 2.8754326256077E+15
Volume 6.3773109305596E+22
Height 38414485.698684