81444268 (number)

81444268 is an even 8-digits composite number following 81444267 and preceding 81444269. In scientific notation, it is written as 8.1444268 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 40704080 positive integers (up to 81444268) that are relatively prime to 81444268.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand two hundred sixty-eight

Notation

Scientific notation 8.1444268 × 10^7
Engineering notation 8.1444268 × 10^6

Prime Factorization of 81444268

Prime Factorization 2 × 2 × 4391 × 4637

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40722134
Product of the distinct prime numbers

The prime factorization of 81444268 is 2 × 2 × 4391 × 4637. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 3, 66, 403, 224, 5840, 4458, 46990, 11928, 127081, 418487, 100361, 2881210, 48502847, 73620854, 298810864, 621617253, 8771555954, 8262907470

Basic calculations (n = 81444268)

Multiplication

n×y
n×2 162888536
n×3 244332804
n×4 325777072
n×5 407221340

Division

n÷y
n÷2 40722134
n÷3 27148089.333333
n÷3 20361067
n÷5 16288853.6

Exponentiation

ny
n2 6633168790055824
n3 5.4023357662654E+23
n4 4.3998928197371E+31
n5 3.5834604998194E+39

Nth Root

y√n
2√n 9024.6478047622
3√n 433.46447286681
4√n 94.998146322769
5√n 38.209566003954

Divisors of 81444268

1, 2, 4, 4391, 4637, 8782, 9274, 17564, 18548, 20361067, 40722134, 81444268

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 -81444267
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 81444268 can be divided by 12 positive divisors. The sum of these divisors (counting 81444268) is 1, the average is 0.083333333333333.

Base conversion 81444268

Base System Value
2 Binary 100110110101011110110101100
3 Ternary 12200020210112101
4 Quaternary 10312223312230
5 Quinary 131322204033
6 Senary 12025344444
8 Octal 466536654
10 Decimal 81444268
12 Duodecimal 23338124
16 Hexadecimal 4dabdac
20 Vigesimal 1590ad8
36 Base36 1chmss

Cryptographic Hash Functions

md5 bf2b4f4e39aaf8acf84c9c331db4c142
sha1 e55084b24da783880b031515966f413c4f374099
sha256 032bbc1839d0bd20521e2118f6f38d49dd9f725d17122faf252d6ffa2d86389f
sha512 83783b44c36cdbfe872d3cc84df35b5dbd1fa432384035a2856bfcbc1cc28210a3ac75c9641b69d78b7282cea0b04931ce9f17c3b32e7ec0b9614e70afa1892a
ripemd-160 17c7f5b283eaef504519ac05ce97f239cc4dba6f

81444268 as geometric shapes

Circle

Radius = n
Diameter 162888536
Circumference 511729428.0516
Area 2.083871434086E+16

Sphere

Radius = n
Volume 2.26292511407E+24
Surface area 8.3354857363442E+16
Circumference 511729428.0516

Square

Length = n
Perimeter 325777072
Area 6633168790055824
Diagonal 115179588.38315

Cube

Length = n
Surface area 39799012740334944
Volume 5.4023357662654E+23
Space diagonal 141065610.16126

Equilateral Triangle

Length = n
Perimeter 244332804
Area 2.8722463398892E+15
Altitude 70532805.080628

Triangular Pyramid

Length = n
Surface area 2.8722463398892E+15
Volume 6.3667137576215E+22
Height 38393196.127716