81344644 (number)

81344644 is an even 8-digits composite number following 81344643 and preceding 81344645. In scientific notation, it is written as 8.1344644 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 40607784 positive integers (up to 81344644) that are relatively prime to 81344644.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1344644 × 10^7
Engineering notation 8.1344644 × 10^6

Prime Factorization of 81344644

Prime Factorization 2 × 2 × 643 × 31627

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40672322
Product of the distinct prime numbers

The prime factorization of 81344644 is 2 × 2 × 643 × 31627. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 2, 55, 43, 168, 440, 9305, 6587, 15370, 4299, 713682, 905404, 9726030, 6490931, 62776499, 61772878, 452142384, 523190322, 2920868216, 4205030014

Basic calculations (n = 81344644)

Multiplication

n×y
n×2 162689288
n×3 244033932
n×4 325378576
n×5 406723220

Division

n÷y
n÷2 40672322
n÷3 27114881.333333
n÷3 20336161
n÷5 16268928.8

Exponentiation

ny
n2 6616951107486736
n3 5.3825353220391E+23
n4 4.378404195887E+31
n5 3.5615973060253E+39

Nth Root

y√n
2√n 9019.1265652501
3√n 433.28766040654
4√n 94.969082154405
5√n 38.200213709977

Divisors of 81344644

1, 2, 4, 643, 1286, 2572, 31627, 63254, 126508, 20336161, 40672322, 81344644

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81344643
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81344644 can be divided by 12 positive divisors. The sum of these divisors (counting 81344644) is 1, the average is 0.083333333333333.

Base conversion 81344644

Base System Value
2 Binary 100110110010011100010000100
3 Ternary 12200001201212121
4 Quaternary 10312103202010
5 Quinary 131311012034
6 Senary 12023255324
8 Octal 466234204
10 Decimal 81344644
12 Duodecimal 232aa544
16 Hexadecimal 4d93884
20 Vigesimal 15881c4
36 Base36 1cfhxg

Cryptographic Hash Functions

md5 519d10cd26b1ea7e9f6173b1e183d751
sha1 c11fd803ccc79dfbc9819dd53e521b5c6d5f6f99
sha256 88629db7d25597199704106ae6a3294bf436930b2e09ef099c59440be00aff7f
sha512 c067591cc85cbd233353ee525a750832c857543f975db2ca18f248e102206bccdeb17aebbadf0bd1473457d52d2e5b32dc08fdc88cb1f602cc68c692c263bb9a
ripemd-160 99a1bf31c4471278e9b878c38510ea8643edfd35

81344644 as geometric shapes

Circle

Radius = n
Diameter 162689288
Circumference 511103471.99855
Area 2.0787764988443E+16

Sphere

Radius = n
Volume 2.2546311233874E+24
Surface area 8.3151059953773E+16
Circumference 511103471.99855

Square

Length = n
Perimeter 325378576
Area 6616951107486736
Diagonal 115038698.77121

Cube

Length = n
Surface area 39701706644920416
Volume 5.3825353220391E+23
Space diagonal 140893056.3316

Equilateral Triangle

Length = n
Perimeter 244033932
Area 2.8652238773415E+15
Altitude 70446528.165801

Triangular Pyramid

Length = n
Surface area 2.8652238773415E+15
Volume 6.3433787103167E+22
Height 38346232.923737