81242212 (number)

81242212 is an even 8-digits composite number following 81242211 and preceding 81242213. In scientific notation, it is written as 8.1242212 × 10^7. The sum of its digits is 22. It has a total of 4 prime factors and 12 positive divisors. There are 40396320 positive integers (up to 81242212) that are relatively prime to 81242212.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-two thousand two hundred twelve

Notation

Scientific notation 8.1242212 × 10^7
Engineering notation 8.1242212 × 10^6

Prime Factorization of 81242212

Prime Factorization 2 × 2 × 181 × 112213

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40621106
Product of the distinct prime numbers

The prime factorization of 81242212 is 2 × 2 × 181 × 112213. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 89, 62, 961, 142, 3223, 3504, 33871, 95223, 108283, 507717, 7363576, 849436, 90790427, 89402336, 926907735, 492824496, 1419172543, 1259287319

Basic calculations (n = 81242212)

Multiplication

n×y
n×2 162484424
n×3 243726636
n×4 324968848
n×5 406211060

Division

n÷y
n÷2 40621106
n÷3 27080737.333333
n÷3 20310553
n÷5 16248442.4

Exponentiation

ny
n2 6600297010652944
n3 5.3622272900243E+23
n4 4.3563920628834E+31
n5 3.5392292752789E+39

Nth Root

y√n
2√n 9013.4461777946
3√n 433.1057137254
4√n 94.939170934839
5√n 38.190588253389

Divisors of 81242212

1, 2, 4, 181, 362, 724, 112213, 224426, 448852, 20310553, 40621106, 81242212

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 -81242211
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 81242212 can be divided by 12 positive divisors. The sum of these divisors (counting 81242212) is 1, the average is 0.083333333333333.

Base conversion 81242212

Base System Value
2 Binary 100110101111010100001100100
3 Ternary 12122212112100211
4 Quaternary 10311322201210
5 Quinary 131244222322
6 Senary 12021145204
8 Octal 465724144
10 Decimal 81242212
12 Duodecimal 2325b204
16 Hexadecimal 4d7a864
20 Vigesimal 157f5ac
36 Base36 1cdaw4

Cryptographic Hash Functions

md5 b1136884c8f22375d104ef88762ad811
sha1 184705d837b161e1594c2ff1dd2f4bdf3def55a3
sha256 b3bdf730dd9ab5cf4031c44cfe24c89bd0d9229b878e8bcf8775e89f7fc2c6c1
sha512 7857dc1cd40f36cbdcd25ee5a44e5687211e83db9afc369968de038d2919b449668baed47a861a5abf175f500ff299e59ce2026bc96575610a79ccb2ede7422a
ripemd-160 d2fba391e2a03bf166e7df696f53b5af6fd29642

81242212 as geometric shapes

Circle

Radius = n
Diameter 162484424
Circumference 510459872.76117
Area 2.0735444600178E+16

Sphere

Radius = n
Volume 2.2461245148292E+24
Surface area 8.2941778400712E+16
Circumference 510459872.76117

Square

Length = n
Perimeter 324968848
Area 6600297010652944
Diagonal 114893838.04759

Cube

Length = n
Surface area 39601782063917664
Volume 5.3622272900243E+23
Space diagonal 140715638.90328

Equilateral Triangle

Length = n
Perimeter 243726636
Area 2.858012441874E+15
Altitude 70357819.451641

Triangular Pyramid

Length = n
Surface area 2.858012441874E+15
Volume 6.3194454650663E+22
Height 38297946.015863