81563838 (number)

81563838 is an even 8-digits composite number following 81563837 and preceding 81563839. In scientific notation, it is written as 8.1563838 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 27187944 positive integers (up to 81563838) that are relatively prime to 81563838.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred sixty-three thousand eight hundred thirty-eight

Notation

Scientific notation 8.1563838 × 10^7
Engineering notation 8.1563838 × 10^6

Prime Factorization of 81563838

Prime Factorization 2 × 3 × 13593973

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81563838
Product of the distinct prime numbers

The prime factorization of 81563838 is 2 × 3 × 13593973. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81563838)

Multiplication

n×y
n×2 163127676
n×3 244691514
n×4 326255352
n×5 407819190

Division

n÷y
n÷2 40781919
n÷3 27187946
n÷3 20390959.5
n÷5 16312767.6

Exponentiation

ny
n2 6652659669290244
n3 5.4261645553512E+23
n4 4.4257880675401E+31
n5 3.6098426096317E+39

Nth Root

y√n
2√n 9031.2700103585
3√n 433.67649516971
4√n 95.03299432491
5√n 38.220778670748

Divisors of 81563838

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 -81563837
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 81563838 can be divided by 8 positive divisors. The sum of these divisors (counting 81563838) is 1, the average is 0.125.

Base conversion 81563838

Base System Value
2 Binary 100110111001001000010111110
3 Ternary 12200110212112220
4 Quaternary 10313021002332
5 Quinary 131340020323
6 Senary 12032110210
8 Octal 467110276
10 Decimal 81563838
12 Duodecimal 23395366
16 Hexadecimal 4dc90be
20 Vigesimal 159f9bi
36 Base36 1ck726

Cryptographic Hash Functions

md5 19ef96b01db7954a40df94167175fa25
sha1 21c329f13f73f1f938675e58a12ed43cf902cf00
sha256 bd9625ea4c6a935ce42427796d25cb70ca010085d103cb23b16750c9db089c9b
sha512 0fc782454fd70b3eba73c32be22ad4c88312d895d4ff945db91a4715dcebfb0ff21a7a6fc272cfd120399fd35ddd8228462ac1198d77937c49ef144478a195c3
ripemd-160 251484279a6eac436d392bc1df2d3fb8a16af59e

81563838 as geometric shapes

Circle

Radius = n
Diameter 163127676
Circumference 512480708.51878
Area 2.0899946743875E+16

Sphere

Radius = n
Volume 2.2729064939014E+24
Surface area 8.3599786975501E+16
Circumference 512480708.51878

Square

Length = n
Perimeter 326255352
Area 6652659669290244
Diagonal 115348685.8988

Cube

Length = n
Surface area 39915958015741464
Volume 5.4261645553512E+23
Space diagonal 141272711.47632

Equilateral Triangle

Length = n
Perimeter 244691514
Area 2.8806861381688E+15
Altitude 70636355.738159

Triangular Pyramid

Length = n
Surface area 2.8806861381688E+15
Volume 6.3947962548716E+22
Height 38449561.966267