81289650 (number)

81289650 is an even 8-digits composite number following 81289649 and preceding 81289651. In scientific notation, it is written as 8.1289650 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 48 positive divisors. There are 20009280 positive integers (up to 81289650) that are relatively prime to 81289650.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred eighty-nine thousand six hundred fifty

Notation

Scientific notation 8.1289650 × 10^7
Engineering notation 8.1289650 × 10^6

Prime Factorization of 81289650

Prime Factorization 2 × 3 × 5 × 5 × 13 × 41687

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 16257930
Product of the distinct prime numbers

The prime factorization of 81289650 is 2 × 3 × 5 × 5 × 13 × 41687. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81289650)

Multiplication

n×y
n×2 162579300
n×3 243868950
n×4 325158600
n×5 406448250

Division

n÷y
n÷2 40644825
n÷3 27096550
n÷3 20322412.5
n÷5 16257930

Exponentiation

ny
n2 6608007197122500
n3 5.3716259225157E+23
n4 4.3665759117223E+31
n5 3.5495742756233E+39

Nth Root

y√n
2√n 9016.0773066783
3√n 433.18999532692
4√n 94.953026843162
5√n 38.195047172185

Divisors of 81289650

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81289649
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81289650 can be divided by 48 positive divisors. The sum of these divisors (counting 81289650) is 1, the average is 0.020833333333333.

Base conversion 81289650

Base System Value
2 Binary 100110110000110000110110010
3 Ternary 12122221221102210
4 Quaternary 10312012012302
5 Quinary 131302232100
6 Senary 12022152550
8 Octal 466060662
10 Decimal 81289650
12 Duodecimal 23282756
16 Hexadecimal 4d861b2
20 Vigesimal 158142a
36 Base36 1cebhu

Cryptographic Hash Functions

md5 a1c4fbb92b974b62dd72cb2e4e4ba2be
sha1 d1aa171f1c5cb5acae415271bfcce8db37a35d21
sha256 563bad71737605d12f7a8032a44a895c01b185b08ae29c5434a8668f35489850
sha512 c46f0e484c36094719b1da3cd590f74a1996032a531664b477c5cf7567703362f8169f253dea8ec7eaccd88380156f9b06a07f7673ae3430c7134f31676a9ae6
ripemd-160 853f2d7f2fb85ba5bccab7f8464e428f73925748

81289650 as geometric shapes

Circle

Radius = n
Diameter 162579300
Circumference 510757934.50577
Area 2.0759666865349E+16

Sphere

Radius = n
Volume 2.250061404801E+24
Surface area 8.3038667461394E+16
Circumference 510757934.50577

Square

Length = n
Perimeter 325158600
Area 6608007197122500
Diagonal 114960925.51056

Cube

Length = n
Surface area 39648043182735000
Volume 5.3716259225157E+23
Space diagonal 140797803.92949

Equilateral Triangle

Length = n
Perimeter 243868950
Area 2.8613510505492E+15
Altitude 70398901.964746

Triangular Pyramid

Length = n
Surface area 2.8613510505492E+15
Volume 6.3305218596805E+22
Height 38320308.503521