72185985 (number)

72185985 is an odd 8-digits composite number following 72185984 and preceding 72185986. In scientific notation, it is written as 7.2185985 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 38188800 positive integers (up to 72185985) that are relatively prime to 72185985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.2185985 × 10^7
Engineering notation 7.2185985 × 10^6

Prime Factorization of 72185985

Prime Factorization 405 × 137 × 1301

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 72185985
Product of the distinct prime numbers

The prime factorization of 72185985 is 405 × 137 × 1301. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 10, 87, 11, 680, 527, 5200, 9046, 26789, 7923, 709464, 35496, 6643044, 8714960, 58586154, 99696190, 320126130, 541619211, 9054588434, 5632146184

Basic calculations (n = 72185985)

Multiplication

n×y
n×2 144371970
n×3 216557955
n×4 288743940
n×5 360929925

Division

n÷y
n÷2 36092992.5
n÷3 24061995
n÷3 18046496.25
n÷5 14437197

Exponentiation

ny
n2 5210816430420225
n3 3.7614791668407E+23
n4 2.7152607871537E+31
n5 1.9600377445257E+39

Nth Root

y√n
2√n 8496.2335772976
3√n 416.37466438879
4√n 92.175016014632
5√n 37.298432225908

Divisors of 72185985

1, 137, 405, 1301, 55485, 178237, 526905, 72185985

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 -72185984
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 72185985 can be divided by 8 positive divisors. The sum of these divisors (counting 72185985) is 1, the average is 0.125.

Base conversion 72185985

Base System Value
2 Binary 100010011010111100010000001
3 Ternary 12000211102120000
4 Quaternary 10103113202001
5 Quinary 121434422420
6 Senary 11055110213
8 Octal 423274201
10 Decimal 72185985
12 Duodecimal 20212369
16 Hexadecimal 44d7881
20 Vigesimal 12b34j5
36 Base36 16z729

Cryptographic Hash Functions

md5 bcfc4e08addbaff7e43f25e29ba5ce5b
sha1 9167790f9e773a23c8fe1abc79ef51de0e70c226
sha256 db985e026fb2587435a106b70e216c5a4f8fc5c7f366ef5a23529177e2979cd5
sha512 c427dc5660a1dc17f8133579eba3d56b82607431ad399878b54a40361a8c30b5958a1b0385e1e65dfa55336bc77d0668062aa472cb67b9c53e1e90c7a2e71903
ripemd-160 a47cab09b21ae92aea48b1dc77a4e2a6eb7c3473

72185985 as geometric shapes

Circle

Radius = n
Diameter 144371970
Circumference 453557920.33629
Area 1.6370262617013E+16

Sphere

Radius = n
Volume 1.575604708957E+24
Surface area 6.5481050468053E+16
Circumference 453557920.33629

Square

Length = n
Perimeter 288743940
Area 5210816430420225
Diagonal 102086399.00026

Cube

Length = n
Surface area 31264898582521350
Volume 3.7614791668407E+23
Space diagonal 125029793.6144

Equilateral Triangle

Length = n
Perimeter 216557955
Area 2.2563497016006E+15
Altitude 62514896.807202

Triangular Pyramid

Length = n
Surface area 2.2563497016006E+15
Volume 4.4329457102749E+22
Height 34028799.666754