81291204 (number)

81291204 is an even 8-digits composite number following 81291203 and preceding 81291205. In scientific notation, it is written as 8.1291204 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 27025920 positive integers (up to 81291204) that are relatively prime to 81291204.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-one thousand two hundred four

Notation

Scientific notation 8.1291204 × 10^7
Engineering notation 8.1291204 × 10^6

Prime Factorization of 81291204

Prime Factorization 2 × 2 × 9 × 409 × 5521

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40645602
Product of the distinct prime numbers

The prime factorization of 81291204 is 2 × 2 × 9 × 409 × 5521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 1, 63, 80, 675, 918, 712, 3088, 89340, 51391, 296922, 661185, 8850227, 809915, 54149365, 33604916, 583674281, 452885784, 255333692, 8465510080

Basic calculations (n = 81291204)

Multiplication

n×y
n×2 162582408
n×3 243873612
n×4 325164816
n×5 406456020

Division

n÷y
n÷2 40645602
n÷3 27097068
n÷3 20322801
n÷5 16258240.8

Exponentiation

ny
n2 6608259847769616
n3 5.3719339937005E+23
n4 4.3669098215644E+31
n5 3.549913571544E+39

Nth Root

y√n
2√n 9016.1634856518
3√n 433.19275571509
4√n 94.953480640005
5√n 38.195193204674

Divisors of 81291204

1, 2, 4, 9, 18, 36, 409, 818, 1636, 3681, 5521, 7362, 11042, 14724, 22084, 49689, 99378, 198756, 2258089, 4516178, 9032356, 20322801, 40645602, 81291204

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81291203
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81291204 can be divided by 24 positive divisors. The sum of these divisors (counting 81291204) is 1, the average is 0.041666666666667.

Base conversion 81291204

Base System Value
2 Binary 100110110000110011111000100
3 Ternary 12122222000120100
4 Quaternary 10312012133010
5 Quinary 131302304304
6 Senary 12022204100
8 Octal 466063704
10 Decimal 81291204
12 Duodecimal 23283630
16 Hexadecimal 4d867c4
20 Vigesimal 1581804
36 Base36 1cecp0

Cryptographic Hash Functions

md5 74516ff594084a67409a4e916b5938fc
sha1 b7f276670e19eff046f851f87fe798560a51ab5b
sha256 7c44a4dfb977c5f93f4d2dd0fa76da3d23d55d297b53092a46cc307d6baafe98
sha512 2c6b15b735caa7ec61c51008c0bd2bc7ef32b27d94af7429542202e04f8ad9f0dd96e092cc8043ad940ffd7e9c045cc36650136a38f6ff5ec11027ff2840f271
ripemd-160 11c18820e7cfdb4da0b9610e51129dd0b4708e42

81291204 as geometric shapes

Circle

Radius = n
Diameter 162582408
Circumference 510767698.57574
Area 2.0760460590765E+16

Sphere

Radius = n
Volume 2.2501904493572E+24
Surface area 8.3041842363062E+16
Circumference 510767698.57574

Square

Length = n
Perimeter 325164816
Area 6608259847769616
Diagonal 114963123.19844

Cube

Length = n
Surface area 39649559086617696
Volume 5.3719339937005E+23
Space diagonal 140800495.53645

Equilateral Triangle

Length = n
Perimeter 243873612
Area 2.8614604514886E+15
Altitude 70400247.768223

Triangular Pyramid

Length = n
Surface area 2.8614604514886E+15
Volume 6.3308849250536E+22
Height 38321041.066146