81342615 (number)

81342615 is an odd 8-digits composite number following 81342614 and preceding 81342616. In scientific notation, it is written as 8.1342615 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 43382720 positive integers (up to 81342615) that are relatively prime to 81342615.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred forty-two thousand six hundred fifteen

Notation

Scientific notation 8.1342615 × 10^7
Engineering notation 8.1342615 × 10^6

Prime Factorization of 81342615

Prime Factorization 15 × 5422841

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81342615
Product of the distinct prime numbers

The prime factorization of 81342615 is 15 × 5422841. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81342615)

Multiplication

n×y
n×2 162685230
n×3 244027845
n×4 325370460
n×5 406713075

Division

n÷y
n÷2 40671307.5
n÷3 27114205
n÷3 20335653.75
n÷5 16268523

Exponentiation

ny
n2 6616621015038225
n3 5.3821325582716E+23
n4 4.3779673656645E+31
n5 3.5611531390782E+39

Nth Root

y√n
2√n 9019.0140813728
3√n 433.28405784207
4√n 94.968489939415
5√n 38.200023140559

Divisors of 81342615

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81342614
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81342615 can be divided by 4 positive divisors. The sum of these divisors (counting 81342615) is 1, the average is 0.25.

Base conversion 81342615

Base System Value
2 Binary 100110110010011000010010111
3 Ternary 12200001122002110
4 Quaternary 10312103002113
5 Quinary 131310430430
6 Senary 12023242103
8 Octal 466230227
10 Decimal 81342615
12 Duodecimal 232a9333
16 Hexadecimal 4d93097
20 Vigesimal 1587gaf
36 Base36 1cfgd3

Cryptographic Hash Functions

md5 c45c4eef66b1e6814fcfc19993f92cb2
sha1 43c26ee1c47d8676813b892ac138adb3b5754884
sha256 013c2d34e01821ac4a8f84f9b739f3d080e7a386dce218c12d2e0086325294d3
sha512 36bd2616eb4db11bd3d6265c4dbbe84b4f53cab234d96a6e00e8fe3d3c088a4f38100b6396cc961ef223e8d9bdfe31ff558a0a2beb02e40298724a34b0e659ff
ripemd-160 8f4c6ea6041dd789a8f44756b545e7687c3b1f5f

81342615 as geometric shapes

Circle

Radius = n
Diameter 162685230
Circumference 511090723.41557
Area 2.0786727972432E+16

Sphere

Radius = n
Volume 2.254462414095E+24
Surface area 8.3146911889728E+16
Circumference 511090723.41557

Square

Length = n
Perimeter 325370460
Area 6616621015038225
Diagonal 115035829.33189

Cube

Length = n
Surface area 39699726090229350
Volume 5.3821325582716E+23
Space diagonal 140889542.00051

Equilateral Triangle

Length = n
Perimeter 244027845
Area 2.8650809431185E+15
Altitude 70444771.000257

Triangular Pyramid

Length = n
Surface area 2.8650809431185E+15
Volume 6.3429040486646E+22
Height 38345276.443964