81279086 (number)

81279086 is an even 8-digits composite number following 81279085 and preceding 81279087. In scientific notation, it is written as 8.1279086 × 10^7. The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors. There are 33439680 positive integers (up to 81279086) that are relatively prime to 81279086.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1279086 × 10^7
Engineering notation 8.1279086 × 10^6

Prime Factorization of 81279086

Prime Factorization 2 × 7 × 137 × 31 × 1367

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81279086
Product of the distinct prime numbers

The prime factorization of 81279086 is 2 × 7 × 137 × 31 × 1367. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 6, 16, 87, 28, 193, 4476, 5331, 4342, 92078, 641473, 149538, 7036110, 7317342, 75113125, 26374340, 810819089, 261724814, 4845169165, 8200577997

Basic calculations (n = 81279086)

Multiplication

n×y
n×2 162558172
n×3 243837258
n×4 325116344
n×5 406395430

Division

n÷y
n÷2 40639543
n÷3 27093028.666667
n÷3 20319771.5
n÷5 16255817.2

Exponentiation

ny
n2 6606289820995396
n3 5.3695319850161E+23
n4 4.3643065198987E+31
n5 3.5472684496121E+39

Nth Root

y√n
2√n 9015.4914452846
3√n 433.1712294391
4√n 94.949941786631
5√n 38.194054392774

Divisors of 81279086

1, 2, 7, 14, 31, 62, 137, 217, 274, 434, 959, 1367, 1918, 2734, 4247, 8494, 9569, 19138, 29729, 42377, 59458, 84754, 187279, 296639, 374558, 593278, 1310953, 2621906, 5805649, 11611298, 40639543, 81279086

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 -81279085
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 81279086 can be divided by 32 positive divisors. The sum of these divisors (counting 81279086) is 1, the average is 0.03125.

Base conversion 81279086

Base System Value
2 Binary 100110110000011100001101110
3 Ternary 12122221101221112
4 Quaternary 10312003201232
5 Quinary 131301412321
6 Senary 12022032022
8 Octal 466034156
10 Decimal 81279086
12 Duodecimal 23278612
16 Hexadecimal 4d8386e
20 Vigesimal 157jhe6
36 Base36 1ce3ce

Cryptographic Hash Functions

md5 ea784291f75478e87771cc301f47de11
sha1 d103c240915f7f40148b0c4a79784aba47cd5d95
sha256 b1c43563bdfd51d49b968e31b14fe53d746b4ac740f083eaec9e92033e091375
sha512 7b15066dda553cfff99937e4e562324df30c583de4685c312e238aca0c327f3b16779c28dbbaf017bc9811a13c178be500caf5dba813b5da31f9e894bfb5bf22
ripemd-160 04e530b18adcd07fdc8878c594a141bc077c76ac

81279086 as geometric shapes

Circle

Radius = n
Diameter 162558172
Circumference 510691558.93619
Area 2.0754271569124E+16

Sphere

Radius = n
Volume 2.2491842983123E+24
Surface area 8.3017086276497E+16
Circumference 510691558.93619

Square

Length = n
Perimeter 325116344
Area 6606289820995396
Diagonal 114945985.75849

Cube

Length = n
Surface area 39637738925972376
Volume 5.3695319850161E+23
Space diagonal 140779506.54476

Equilateral Triangle

Length = n
Perimeter 243837258
Area 2.8606074048723E+15
Altitude 70389753.27238

Triangular Pyramid

Length = n
Surface area 2.8606074048723E+15
Volume 6.3280541306716E+22
Height 38315328.586163