81492968 (number)

81492968 is an even 8-digits composite number following 81492967 and preceding 81492969. In scientific notation, it is written as 8.1492968 × 10^7. The sum of its digits is 47. It has a total of 5 prime factors and 16 positive divisors. There are 38349568 positive integers (up to 81492968) that are relatively prime to 81492968.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-two thousand nine hundred sixty-eight

Notation

Scientific notation 8.1492968 × 10^7
Engineering notation 8.1492968 × 10^6

Prime Factorization of 81492968

Prime Factorization 2 × 2 × 2 × 17 × 599213

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20373242
Product of the distinct prime numbers

The prime factorization of 81492968 is 2 × 2 × 2 × 17 × 599213. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 5, 64, 25, 932, 932, 4937, 6102, 37377, 41088, 720748, 635690, 5714163, 9443864, 72100261, 6610946, 275576140, 982644554, 1375517905, 2251382737

Basic calculations (n = 81492968)

Multiplication

n×y
n×2 162985936
n×3 244478904
n×4 325971872
n×5 407464840

Division

n÷y
n÷2 40746484
n÷3 27164322.666667
n÷3 20373242
n÷5 16298593.6

Exponentiation

ny
n2 6641103833449024
n3 5.4120326218394E+23
n4 4.4104260126651E+31
n5 3.5941870591649E+39

Nth Root

y√n
2√n 9027.3455677735
3√n 433.55085305533
4√n 95.012344291537
5√n 38.214134430925

Divisors of 81492968

1, 2, 4, 8, 17, 34, 68, 136, 599213, 1198426, 2396852, 4793704, 10186621, 20373242, 40746484, 81492968

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81492967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81492968 can be divided by 16 positive divisors. The sum of these divisors (counting 81492968) is 1, the average is 0.0625.

Base conversion 81492968

Base System Value
2 Binary 100110110110111101111101000
3 Ternary 12200100021100002
4 Quaternary 10312313233220
5 Quinary 131330233333
6 Senary 12030402132
8 Octal 466675750
10 Decimal 81492968
12 Duodecimal 23360348
16 Hexadecimal 4db7be8
20 Vigesimal 1596c88
36 Base36 1ciodk

Cryptographic Hash Functions

md5 07965a7c0bc14774c29c2576112a3f6c
sha1 52ef1fc20bbcd2a3d5d802ab205de4b704075364
sha256 200c9578b42fec0ace2cd666814f187b9b51d0ec14d67ac77ae846ad68003c4a
sha512 70c878eed39fa0ec6ff58788f1b6b1c2acc76e89c040f3c157722bb228c7f46de84d15c14ab557ec7c8c16dd5af7b19bf5ad898abae84b3676b7e53f768bf3bc
ripemd-160 b9ab8c53b7760733ca9c78f4ef5b4107e412bf25

81492968 as geometric shapes

Circle

Radius = n
Diameter 162985936
Circumference 512035419.17606
Area 2.086364301489E+16

Sphere

Radius = n
Volume 2.2669869234345E+24
Surface area 8.3454572059562E+16
Circumference 512035419.17606

Square

Length = n
Perimeter 325971872
Area 6641103833449024
Diagonal 115248460.58364

Cube

Length = n
Surface area 39846623000694144
Volume 5.4120326218394E+23
Space diagonal 141149961.03558

Equilateral Triangle

Length = n
Perimeter 244478904
Area 2.8756823144685E+15
Altitude 70574980.517792

Triangular Pyramid

Length = n
Surface area 2.8756823144685E+15
Volume 6.3781416115091E+22
Height 38416153.527879