81444986 (number)

81444986 is an even 8-digits composite number following 81444985 and preceding 81444987. In scientific notation, it is written as 8.1444986 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 32 positive divisors. There are 34272000 positive integers (up to 81444986) that are relatively prime to 81444986.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand nine hundred eighty-six

Notation

Scientific notation 8.1444986 × 10^7
Engineering notation 8.1444986 × 10^6

Prime Factorization of 81444986

Prime Factorization 2 × 7 × 241 × 101 × 239

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81444986
Product of the distinct prime numbers

The prime factorization of 81444986 is 2 × 7 × 241 × 101 × 239. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 2, 27, 94, 19, 762, 4172, 1589, 30619, 11604, 512704, 450815, 4412944, 8518888, 60638778, 1359040, 325693321, 929947320, 7585646252, 6533530771

Basic calculations (n = 81444986)

Multiplication

n×y
n×2 162889972
n×3 244334958
n×4 325779944
n×5 407224930

Division

n÷y
n÷2 40722493
n÷3 27148328.666667
n÷3 20361246.5
n÷5 16288997.2

Exponentiation

ny
n2 6633285744540196
n3 5.4024786459808E+23
n4 4.400047976872E+31
n5 3.5836184587567E+39

Nth Root

y√n
2√n 9024.6875846203
3√n 433.46574664819
4√n 94.998355694298
5√n 38.209633373635

Divisors of 81444986

1, 2, 7, 14, 101, 202, 239, 241, 478, 482, 707, 1414, 1673, 1687, 3346, 3374, 24139, 24341, 48278, 48682, 57599, 115198, 168973, 170387, 337946, 340774, 403193, 806386, 5817499, 11634998, 40722493, 81444986

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81444985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444986 can be divided by 32 positive divisors. The sum of these divisors (counting 81444986) is 1, the average is 0.03125.

Base conversion 81444986

Base System Value
2 Binary 100110110101100000001111010
3 Ternary 12200020211111222
4 Quaternary 10312230001322
5 Quinary 131322214421
6 Senary 12025352042
8 Octal 466540172
10 Decimal 81444986
12 Duodecimal 23338622
16 Hexadecimal 4dac07a
20 Vigesimal 1590c96
36 Base36 1chncq

Cryptographic Hash Functions

md5 5266041d05e55d335a3f6507c6e3af4a
sha1 eb6eec036c266b4a8e501b4fe0b11cf64bc5b091
sha256 5fb9068403e6d2884eb1a634d4aad58bcfd5cf4e140a77b86f8ce3683c36749b
sha512 c6c73c6b25f0b2ea9f171284d63c829df48d0815723d8e8b8991cc56c52b65816938bb0d34b862610448d4ad45e026765f7c4b3c67915ce35e28c4e2875d708f
ripemd-160 b84265486b83f6473983a1b1e7f5ef3a4ff2be29

81444986 as geometric shapes

Circle

Radius = n
Diameter 162889972
Circumference 511733939.37865
Area 2.0839081764209E+16

Sphere

Radius = n
Volume 2.2629849633852E+24
Surface area 8.3356327056838E+16
Circumference 511733939.37865

Square

Length = n
Perimeter 325779944
Area 6633285744540196
Diagonal 115180603.78849

Cube

Length = n
Surface area 39799714467241176
Volume 5.4024786459808E+23
Space diagonal 141066853.77374

Equilateral Triangle

Length = n
Perimeter 244334958
Area 2.8722969826665E+15
Altitude 70533426.886868

Triangular Pyramid

Length = n
Surface area 2.8722969826665E+15
Volume 6.3668821429809E+22
Height 38393534.596162