72905 (number)

72905 is an odd 5-digits composite number following 72904 and preceding 72906. In scientific notation, it is written as 7.2905 × 10^4. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 49968 positive integers (up to 72905) that are relatively prime to 72905.

Interesting facts

Basic properties

Name

Name seventy-two thousand nine hundred five

Notation

Scientific notation 7.2905 × 10^4
Engineering notation 7.2905 × 10^3

Prime Factorization of 72905

Prime Factorization 5 × 7 × 2083

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 72905
Product of the distinct prime numbers

The prime factorization of 72905 is 5 × 7 × 2083. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 72905)

Multiplication

n×y
n×2 145810
n×3 218715
n×4 291620
n×5 364525

Division

n÷y
n÷2 36452.5
n÷3 24301.666666667
n÷3 18226.25
n÷5 14581

Exponentiation

ny
n2 5315139025
n3 387500210617625
n4 2.8250702855078E+19
n5 2.0596174916495E+24

Nth Root

y√n
2√n 270.0092591005
3√n 41.775254540112
4√n 16.431958468195
5√n 9.3875327010361

Divisors of 72905

1, 5, 7, 35, 2083, 10415, 14581, 72905

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72905 can be divided by 8 positive divisors. The sum of these divisors (counting 72905) is 1, the average is 0.125.

Base conversion 72905

Base System Value
2 Binary 10001110011001001
3 Ternary 10201000012
4 Quaternary 101303021
5 Quinary 4313110
6 Senary 1321305
8 Octal 216311
10 Decimal 72905
12 Duodecimal 36235
16 Hexadecimal 11cc9
20 Vigesimal 9255
36 Base36 1k95

Cryptographic Hash Functions

md5 980d30c34b39c689d671421c8192ac4a
sha1 f88c22553100060b0630e6e4d26aac9ad9849be8
sha256 1cffcbfcd92d70dc2fa9e18f3ba5d330c43f8bc7cdd67775ea4832be29cb38c5
sha512 2403d88978330066c4b602c7f2a033ed45e731793039dca035c453bd734e1b4a157331c717bc8bd00c65d78f7fbe72c19b4ad825c806013a81123791e6ea45bd
ripemd-160 e773da119f4a6ab90c61aa19d6cee54ffb0c884b

72905 as geometric shapes

Circle

Radius = n
Diameter 145810
Circumference 458075.62481993
Area 16698001713.748

Sphere

Radius = n
Volume 1.6231570865878E+15
Surface area 66792006854.994
Circumference 458075.62481993

Square

Length = n
Perimeter 291620
Area 5315139025
Diagonal 103103.23976481

Cube

Length = n
Surface area 31890834150
Volume 387500210617625
Space diagonal 126275.16412581

Equilateral Triangle

Length = n
Perimeter 218715
Area 2301522710.148
Altitude 63137.582062904

Triangular Pyramid

Length = n
Surface area 2301522710.148
Volume 45667337773156
Height 34367.74658827