72181881 (number)

72181881 is an odd 8-digits composite number following 72181880 and preceding 72181882. In scientific notation, it is written as 7.2181881 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 45290304 positive integers (up to 72181881) that are relatively prime to 72181881.

Interesting facts

Basic properties

Name

Name seventy-two million one hundred eighty-one thousand eight hundred eighty-one

Notation

Scientific notation 7.2181881 × 10^7
Engineering notation 7.2181881 × 10^6

Prime Factorization of 72181881

Prime Factorization 3 × 9 × 17 × 157259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 72181881
Product of the distinct prime numbers

The prime factorization of 72181881 is 3 × 9 × 17 × 157259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 72181881)

Multiplication

n×y
n×2 144363762
n×3 216545643
n×4 288727524
n×5 360909405

Division

n÷y
n÷2 36090940.5
n÷3 24060627
n÷3 18045470.25
n÷5 14436376.2

Exponentiation

ny
n2 5210223944698161
n3 3.7608376475955E+23
n4 2.7146433553906E+31
n5 1.9594806363625E+39

Nth Root

y√n
2√n 8495.992055081
3√n 416.36677350338
4√n 92.173705876899
5√n 37.298008109656

Divisors of 72181881

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 -72181880
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 72181881 can be divided by 16 positive divisors. The sum of these divisors (counting 72181881) is 1, the average is 0.0625.

Base conversion 72181881

Base System Value
2 Binary 100010011010110100001111001
3 Ternary 12000211012221000
4 Quaternary 10103112201321
5 Quinary 121434310011
6 Senary 11055035213
8 Octal 423264171
10 Decimal 72181881
12 Duodecimal 2020bb09
16 Hexadecimal 44d6879
20 Vigesimal 12b2ee1
36 Base36 16z3w9

Cryptographic Hash Functions

md5 f21e25ac46217e594708b982785c36e3
sha1 2acb43dba0084334d877ffe59f90c74be2b44dac
sha256 4e04e4a47eeba85494f38e1da33b6b0a2f106b1b3ca3909cb2ae52e23e17b654
sha512 9d5cbcc6031d4307e1b735a19b44f8d5d7efd14b6b94206123b52c2398094305e2c0c5264d46d5310c6a1b118bbba1dd0dd8e33d49bd02aa7cb6d66356665f09
ripemd-160 7ff8005910028166ab95d9a61be503841e7c6c27

72181881 as geometric shapes

Circle

Radius = n
Diameter 144363762
Circumference 453532134.14379
Area 1.6368401268221E+16

Sphere

Radius = n
Volume 1.575335990004E+24
Surface area 6.5473605072886E+16
Circumference 453532134.14379

Square

Length = n
Perimeter 288727524
Area 5210223944698161
Diagonal 102080595.0678

Cube

Length = n
Surface area 31261343668188966
Volume 3.7608376475955E+23
Space diagonal 125022685.27789

Equilateral Triangle

Length = n
Perimeter 216545643
Area 2.2560931477573E+15
Altitude 62511342.638945

Triangular Pyramid

Length = n
Surface area 2.2560931477573E+15
Volume 4.4321896725941E+22
Height 34026865.0226