72181521 (number)

72181521 is an odd 8-digits composite number following 72181520 and preceding 72181522. In scientific notation, it is written as 7.2181521 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 14 positive divisors. There are 46025760 positive integers (up to 72181521) that are relatively prime to 72181521.

Interesting facts

Basic properties

Name

Name seventy-two million one hundred eighty-one thousand five hundred twenty-one

Notation

Scientific notation 7.2181521 × 10^7
Engineering notation 7.2181521 × 10^6

Prime Factorization of 72181521

Prime Factorization 69 × 3 × 23 × 15161

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 72181521
Product of the distinct prime numbers

The prime factorization of 72181521 is 69 × 3 × 23 × 15161. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 72181521)

Multiplication

n×y
n×2 144363042
n×3 216544563
n×4 288726084
n×5 360907605

Division

n÷y
n÷2 36090760.5
n÷3 24060507
n÷3 18045380.25
n÷5 14436304.2

Exponentiation

ny
n2 5210171973873441
n3 3.7607813774576E+23
n4 2.7145891997336E+31
n5 1.9594317732695E+39

Nth Root

y√n
2√n 8495.9708685941
3√n 416.36608130618
4√n 92.173590949871
5√n 37.297970905556

Divisors of 72181521

14 divisors

τ Total Divisors 14
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72181520
Sum of the proper positive divisors of n
A Arithmetic Mean 0.071428571428571
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 14
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72181521 can be divided by 14 positive divisors. The sum of these divisors (counting 72181521) is 1, the average is 0.071428571428571.

Base conversion 72181521

Base System Value
2 Binary 100010011010110011100010001
3 Ternary 12000211012102200
4 Quaternary 10103112130101
5 Quinary 121434302041
6 Senary 11055033413
8 Octal 423263421
10 Decimal 72181521
12 Duodecimal 2020b869
16 Hexadecimal 44d6711
20 Vigesimal 12b2dg1
36 Base36 16z3m9

Cryptographic Hash Functions

md5 2d9ed24d5acfd7f7587108ddf8f97cdf
sha1 2a70d9beaad3ee174450e42bc646372b7438931c
sha256 9456f44ed2f25c5059e42a1e8c25002ba9298b5f3c959bc6718057be6d93a013
sha512 c499fea6c32805fa29eab800c560d7c90c3f172341ec858e448f9b8ec5a82d665524b0fad4ee6a46211da77313e6758f7ace1e114e0f1f167aaf234bd8856a83
ripemd-160 48723299c0e35a9811a0213f16d095d32285b41b

72181521 as geometric shapes

Circle

Radius = n
Diameter 144363042
Circumference 453529872.19707
Area 1.636823799706E+16

Sphere

Radius = n
Volume 1.5753124196237E+24
Surface area 6.5472951988241E+16
Circumference 453529872.19707

Square

Length = n
Perimeter 288726084
Area 5210171973873441
Diagonal 102080085.95092

Cube

Length = n
Surface area 31261031843240646
Volume 3.7607813774576E+23
Space diagonal 125022061.7396

Equilateral Triangle

Length = n
Perimeter 216544563
Area 2.2560706437301E+15
Altitude 62511030.8698

Triangular Pyramid

Length = n
Surface area 2.2560706437301E+15
Volume 4.4321233576006E+22
Height 34026695.316973