81489212 (number)

81489212 is an even 8-digits composite number following 81489211 and preceding 81489213. In scientific notation, it is written as 8.1489212 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 34923936 positive integers (up to 81489212) that are relatively prime to 81489212.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand two hundred twelve

Notation

Scientific notation 8.1489212 × 10^7
Engineering notation 8.1489212 × 10^6

Prime Factorization of 81489212

Prime Factorization 2 × 2 × 7 × 2910329

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40744606
Product of the distinct prime numbers

The prime factorization of 81489212 is 2 × 2 × 7 × 2910329. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 8, 95, 71, 363, 86, 8064, 3419, 19723, 93714, 261247, 301228, 868971, 9403416, 74565623, 37923915, 333769917, 944010345, 4528261857, 9632371977

Basic calculations (n = 81489212)

Multiplication

n×y
n×2 162978424
n×3 244467636
n×4 325956848
n×5 407446060

Division

n÷y
n÷2 40744606
n÷3 27163070.666667
n÷3 20372303
n÷5 16297842.4

Exponentiation

ny
n2 6640491672380944
n3 5.4112843367489E+23
n4 4.4096129650961E+31
n5 3.5933588575066E+39

Nth Root

y√n
2√n 9027.1375308012
3√n 433.54419218605
4√n 95.011249496053
5√n 38.213782167561

Divisors of 81489212

1, 2, 4, 7, 14, 28, 2910329, 5820658, 11641316, 20372303, 40744606, 81489212

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 -81489211
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 81489212 can be divided by 12 positive divisors. The sum of these divisors (counting 81489212) is 1, the average is 0.083333333333333.

Base conversion 81489212

Base System Value
2 Binary 100110110110110110100111100
3 Ternary 12200100002011222
4 Quaternary 10312312310330
5 Quinary 131330123322
6 Senary 12030332512
8 Octal 466666474
10 Decimal 81489212
12 Duodecimal 2335a138
16 Hexadecimal 4db6d3c
20 Vigesimal 159630c
36 Base36 1cilh8

Cryptographic Hash Functions

md5 905262e6a2f4750a5b07dfced5223cea
sha1 03e785ed5d4e29709f49cfb7fc541637dff5a865
sha256 cffb185201869a71b8f981160cdf0bc9a55b8f09e368b5e0cde3b5f04214893c
sha512 15081201bd2cca6c96fc1561b0673eb3cf7c316aff828a4f68d3ffd276a522f7c7bc73317ba1fb7b2cb179a0a58fbd7facb304aaa8ba775eb654efadad41ca2e
ripemd-160 7fd6e5479326fff9c6e155bc9c03448661c40232

81489212 as geometric shapes

Circle

Radius = n
Diameter 162978424
Circumference 512011819.53204
Area 2.0861719854176E+16

Sphere

Radius = n
Volume 2.2666734825088E+24
Surface area 8.3446879416705E+16
Circumference 512011819.53204

Square

Length = n
Perimeter 325956848
Area 6640491672380944
Diagonal 115243148.7975

Cube

Length = n
Surface area 39842950034285664
Volume 5.4112843367489E+23
Space diagonal 141143455.45275

Equilateral Triangle

Length = n
Perimeter 244467636
Area 2.8754172409505E+15
Altitude 70571727.726376

Triangular Pyramid

Length = n
Surface area 2.8754172409505E+15
Volume 6.3772597490728E+22
Height 38414382.932499