81444893 (number)

81444893 is an odd 8-digits prime number following 81444892 and preceding 81444894. In scientific notation, it is written as 8.1444893 × 10^7. The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors. There are 81444892 positive integers (up to 81444893) that are relatively prime to 81444893.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand eight hundred ninety-three

Notation

Scientific notation 8.1444893 × 10^7
Engineering notation 8.1444893 × 10^6

Prime Factorization of 81444893

Prime Factorization 81444893

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81444893
Product of the distinct prime numbers

The prime factorization of 81444893 is 81444893. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81444893)

Multiplication

n×y
n×2 162889786
n×3 244334679
n×4 325779572
n×5 407224465

Division

n÷y
n÷2 40722446.5
n÷3 27148297.666667
n÷3 20361223.25
n÷5 16288978.6

Exponentiation

ny
n2 6633270595781449
n3 5.4024601391347E+23
n4 4.4000278796859E+31
n5 3.5835979985803E+39

Nth Root

y√n
2√n 9024.6824320859
3√n 433.46558166022
4√n 94.998328575222
5√n 38.209624647505

Divisors of 81444893

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81444894
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40722447
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9024.6824874895
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999754435
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444893 can be divided by 2 positive divisors. The sum of these divisors (counting 81444893) is 81444894, the average is 40722447.

Base conversion 81444893

Base System Value
2 Binary 100110110101100000000011101
3 Ternary 12200020211101112
4 Quaternary 10312230000131
5 Quinary 131322214033
6 Senary 12025351405
8 Octal 466540035
10 Decimal 81444893
12 Duodecimal 23338565
16 Hexadecimal 4dac01d
20 Vigesimal 1590c4d
36 Base36 1chna5

Cryptographic Hash Functions

md5 cca1069869ab4a62b9bd488e9cde9d90
sha1 b3ed92a816015e4b743fb49a6994712dc09fd439
sha256 f4bfcdc07fe91cc7f702faab895f141372cf0789b59c048125dee43ec64befc7
sha512 dc03c32b696b4a6e6fb0c94799d2dc66941519c57f4ed0d973928dfe29c84c05580a323e961950edd2589948fb92ed159627b2e0bac99a417380deee252533d6
ripemd-160 26a354637e5d472292c4d530cc266cfd7bb0c2aa

81444893 as geometric shapes

Circle

Radius = n
Diameter 162889786
Circumference 511733355.04241
Area 2.083903417298E+16

Sphere

Radius = n
Volume 2.2629772112556E+24
Surface area 8.3356136691921E+16
Circumference 511733355.04241

Square

Length = n
Perimeter 325779572
Area 6633270595781449
Diagonal 115180472.26663

Cube

Length = n
Surface area 39799623574688694
Volume 5.4024601391347E+23
Space diagonal 141066692.69301

Equilateral Triangle

Length = n
Perimeter 244334679
Area 2.8722904230615E+15
Altitude 70533346.346505

Triangular Pyramid

Length = n
Surface area 2.8722904230615E+15
Volume 6.3668603324536E+22
Height 38393490.755542