81725904 (number)

81725904 is an even 8-digits composite number following 81725903 and preceding 81725905. In scientific notation, it is written as 8.1725904 × 10^7. The sum of its digits is 36. It has a total of 8 prime factors and 60 positive divisors. There are 24892416 positive integers (up to 81725904) that are relatively prime to 81725904.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-five thousand nine hundred four

Notation

Scientific notation 8.1725904 × 10^7
Engineering notation 8.1725904 × 10^6

Prime Factorization of 81725904

Prime Factorization 2 × 2 × 2 × 2 × 3 × 3 × 1937 × 293

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 3405246
Product of the distinct prime numbers

The prime factorization of 81725904 is 2 × 2 × 2 × 2 × 3 × 3 × 1937 × 293. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 2, 91, 98, 827, 771, 5347, 8480, 27493, 96744, 447374, 373552, 9959465, 5627988, 51792942, 22768721, 884458698, 124208374, 4067104605, 8668817397

Basic calculations (n = 81725904)

Multiplication

n×y
n×2 163451808
n×3 245177712
n×4 326903616
n×5 408629520

Division

n÷y
n÷2 40862952
n÷3 27241968
n÷3 20431476
n÷5 16345180.8

Exponentiation

ny
n2 6679123384617216
n3 5.4585739653538E+23
n4 4.4610689186941E+31
n5 3.6458489018657E+39

Nth Root

y√n
2√n 9040.2380499631
3√n 433.96354114791
4√n 95.080166438448
5√n 38.23595542444

Divisors of 81725904

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 293, 586, 879, 1172, 1758, 1937, 2344, 2637, 3516, 3874, 4688, 5274, 5811, 7032, 7748, 10548, 11622, 14064, 15496, 17433, 21096, 23244, 30992, 34866, 42192, 46488, 69732, 92976, 139464, 278928, 567541, 1135082, 1702623, 2270164, 3405246, 4540328, 5107869, 6810492, 9080656, 10215738, 13620984, 20431476, 27241968, 40862952, 81725904

60 divisors

τ Total Divisors 60
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81725903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.016666666666667
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 60
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81725904 can be divided by 60 positive divisors. The sum of these divisors (counting 81725904) is 1, the average is 0.016666666666667.

Base conversion 81725904

Base System Value
2 Binary 100110111110000100111010000
3 Ternary 12200210002212100
4 Quaternary 10313300213100
5 Quinary 131410212104
6 Senary 12035400400
8 Octal 467604720
10 Decimal 81725904
12 Duodecimal 23453100
16 Hexadecimal 4df09d0
20 Vigesimal 15afef4
36 Base36 1cno40

Cryptographic Hash Functions

md5 ae20e1854e80ec6edbb0a24039a2645e
sha1 cc198bd38cee6c8890c64b8fbae3f27f41d52a98
sha256 7ee637af1a2372a0daa17144a25d0bba80c7c2662b24cca5b9ff7959eb7cacfb
sha512 bdb8672f63ea9895b48e97f90cea4b35ef47122d90bf9a1af1514a29e6aae090643adcadc234ba900dc3bc8c40920d2363405439c543d4d5afa21fff4408e75e
ripemd-160 cc3bd7466cfeead011931b2d5facf81aca58490b

81725904 as geometric shapes

Circle

Radius = n
Diameter 163451808
Circumference 513498999.22877
Area 2.0983084957533E+16

Sphere

Radius = n
Volume 2.2864821158176E+24
Surface area 8.3932339830133E+16
Circumference 513498999.22877

Square

Length = n
Perimeter 326903616
Area 6679123384617216
Diagonal 115577881.834

Cube

Length = n
Surface area 40074740307703296
Volume 5.4585739653538E+23
Space diagonal 141553418.0225

Equilateral Triangle

Length = n
Perimeter 245177712
Area 2.8921452630446E+15
Altitude 70776709.011248

Triangular Pyramid

Length = n
Surface area 2.8921452630446E+15
Volume 6.43299111085E+22
Height 38525960.611334