81352904 (number)

81352904 is an even 8-digits composite number following 81352903 and preceding 81352905. In scientific notation, it is written as 8.1352904 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 32 positive divisors. There are 39471936 positive integers (up to 81352904) that are relatively prime to 81352904.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred fifty-two thousand nine hundred four

Notation

Scientific notation 8.1352904 × 10^7
Engineering notation 8.1352904 × 10^6

Prime Factorization of 81352904

Prime Factorization 2 × 2 × 2 × 43 × 173 × 1367

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20338226
Product of the distinct prime numbers

The prime factorization of 81352904 is 2 × 2 × 2 × 43 × 173 × 1367. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81352904)

Multiplication

n×y
n×2 162705808
n×3 244058712
n×4 325411616
n×5 406764520

Division

n÷y
n÷2 40676452
n÷3 27117634.666667
n÷3 20338226
n÷5 16270580.8

Exponentiation

ny
n2 6618294989233216
n3 5.3841751690277E+23
n4 4.3801828564509E+31
n5 3.563405954233E+39

Nth Root

y√n
2√n 9019.5844693644
3√n 433.30232572341
4√n 94.97149293006
5√n 38.200989473283

Divisors of 81352904

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 -81352903
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 81352904 can be divided by 32 positive divisors. The sum of these divisors (counting 81352904) is 1, the average is 0.03125.

Base conversion 81352904

Base System Value
2 Binary 100110110010101100011001000
3 Ternary 12200002011012112
4 Quaternary 10312111203020
5 Quinary 131311243104
6 Senary 12023401452
8 Octal 466254310
10 Decimal 81352904
12 Duodecimal 232b3288
16 Hexadecimal 4d958c8
20 Vigesimal 1589254
36 Base36 1cfoaw

Cryptographic Hash Functions

md5 b21c3af9a2d539e652b7346c6cea1b81
sha1 7c363a1d293ed354f5b40f769745aa3cd7c95c81
sha256 274dac7940b1513a227a200684fe723895778e1799a61c23a3044282c20c8001
sha512 2bbb55d0951d48e3d8f687684e4cbf3723f4e99791d165ab6bfd890f1bdc271cecf7a604d10a7bace4edd64154c61b25b270527f5d63b4b5fb7811027a9adacb
ripemd-160 e8446a48a8d7a75c36308939dae987cf3f86ad5d

81352904 as geometric shapes

Circle

Radius = n
Diameter 162705808
Circumference 511155371.10919
Area 2.0791986917465E+16

Sphere

Radius = n
Volume 2.2553180208877E+24
Surface area 8.3167947669861E+16
Circumference 511155371.10919

Square

Length = n
Perimeter 325411616
Area 6618294989233216
Diagonal 115050380.17524

Cube

Length = n
Surface area 39709769935399296
Volume 5.3841751690277E+23
Space diagonal 140907363.07127

Equilateral Triangle

Length = n
Perimeter 244058712
Area 2.8658057952076E+15
Altitude 70453681.535637

Triangular Pyramid

Length = n
Surface area 2.8658057952076E+15
Volume 6.3453112885262E+22
Height 38350126.725079