81245983 (number)

81245983 is an odd 8-digits composite number following 81245982 and preceding 81245984. In scientific notation, it is written as 8.1245983 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 63705600 positive integers (up to 81245983) that are relatively prime to 81245983.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-five thousand nine hundred eighty-three

Notation

Scientific notation 8.1245983 × 10^7
Engineering notation 8.1245983 × 10^6

Prime Factorization of 81245983

Prime Factorization 13 × 7 × 113 × 7901

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81245983
Product of the distinct prime numbers

The prime factorization of 81245983 is 13 × 7 × 113 × 7901. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 93, 87, 598, 964, 2587, 3332, 18259, 54667, 629328, 723422, 4812792, 9844657, 5026718, 45813170, 778797403, 95922159, 6189510527, 338193480

Basic calculations (n = 81245983)

Multiplication

n×y
n×2 162491966
n×3 243737949
n×4 324983932
n×5 406229915

Division

n÷y
n÷2 40622991.5
n÷3 27081994.333333
n÷3 20311495.75
n÷5 16249196.6

Exponentiation

ny
n2 6600909753636289
n3 5.3629740162847E+23
n4 4.3572009575651E+31
n5 3.5400507492592E+39

Nth Root

y√n
2√n 9013.655362837
3√n 433.11241474259
4√n 94.940272607766
5√n 38.190942783456

Divisors of 81245983

1, 7, 13, 91, 113, 791, 1469, 7901, 10283, 55307, 102713, 718991, 892813, 6249691, 11606569, 81245983

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 -81245982
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 81245983 can be divided by 16 positive divisors. The sum of these divisors (counting 81245983) is 1, the average is 0.0625.

Base conversion 81245983

Base System Value
2 Binary 100110101111011011100011111
3 Ternary 12122212201112111
4 Quaternary 10311323130133
5 Quinary 131244332413
6 Senary 12021214451
8 Octal 465733437
10 Decimal 81245983
12 Duodecimal 23261427
16 Hexadecimal 4d7b71f
20 Vigesimal 157fej3
36 Base36 1cddsv

Cryptographic Hash Functions

md5 698c0cbcbf6649ba2fe5f277e338fa8d
sha1 99b204ba0772dcb99a8865431317a08453755955
sha256 dd7d8cb93bad210c838f8756e8216fa0926695f61f3fca30aeb47b2ebadd45c5
sha512 a3f7ebc7e91d26f42832c740637a93661f395d25bc0dfc8a92742bff0c5e33767b9dd620dc3afba9737a8df65b794dec9bf6a1e25cb433a21e68af282b8c9c3f
ripemd-160 6f4f140c895e071e26e2cd276bc275bd23313987

81245983 as geometric shapes

Circle

Radius = n
Diameter 162491966
Circumference 510483566.65296
Area 2.0737369589033E+16

Sphere

Radius = n
Volume 2.2464373027937E+24
Surface area 8.2949478356132E+16
Circumference 510483566.65296

Square

Length = n
Perimeter 324983932
Area 6600909753636289
Diagonal 114899171.04693

Cube

Length = n
Surface area 39605458521817734
Volume 5.3629740162847E+23
Space diagonal 140722170.46688

Equilateral Triangle

Length = n
Perimeter 243737949
Area 2.8582777673688E+15
Altitude 70361085.233439

Triangular Pyramid

Length = n
Surface area 2.8582777673688E+15
Volume 6.3203254904036E+22
Height 38299723.682311