81015616 (number)

81015616 is an even 8-digits composite number following 81015615 and preceding 81015617. In scientific notation, it is written as 8.1015616 × 10^7. The sum of its digits is 28. It has a total of 8 prime factors and 28 positive divisors. There are 36824960 positive integers (up to 81015616) that are relatively prime to 81015616.

Interesting facts

Basic properties

Name

Name eighty-one million fifteen thousand six hundred sixteen

Notation

Scientific notation 8.1015616 × 10^7
Engineering notation 8.1015616 × 10^6

Prime Factorization of 81015616

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 11 × 115079

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2531738
Product of the distinct prime numbers

The prime factorization of 81015616 is 2 × 2 × 2 × 2 × 2 × 2 × 11 × 115079. Since it has a total of 8 prime factors.

Most popular turbo-numbers

6, 4, 97, 84, 187, 778, 4597, 1327, 15760, 21641, 840998, 762260, 6053434, 3037716, 85841830, 25089043, 39151783, 434669324, 8242050009, 9637725297

Basic calculations (n = 81015616)

Multiplication

n×y
n×2 162031232
n×3 243046848
n×4 324062464
n×5 405078080

Division

n÷y
n÷2 40507808
n÷3 27005205.333333
n÷3 20253904
n÷5 16203123.2

Exponentiation

ny
n2 6563530035859456
n3 5.3174842898966E+23
n4 4.3079926531629E+31
n5 3.4901467851947E+39

Nth Root

y√n
2√n 9000.8675137456
3√n 432.70267445283
4√n 94.872901893773
5√n 38.16926065726

Divisors of 81015616

1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704, 115079, 230158, 460316, 920632, 1265869, 1841264, 2531738, 3682528, 5063476, 7365056, 10126952, 20253904, 40507808, 81015616

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81015615
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81015616 can be divided by 28 positive divisors. The sum of these divisors (counting 81015616) is 1, the average is 0.035714285714286.

Base conversion 81015616

Base System Value
2 Binary 100110101000011001101000000
3 Ternary 12122110000112101
4 Quaternary 10311003031000
5 Quinary 131214444431
6 Senary 12012240144
8 Octal 465031500
10 Decimal 81015616
12 Duodecimal 23170054
16 Hexadecimal 4d43340
20 Vigesimal 1566j0g
36 Base36 1c8g1s

Cryptographic Hash Functions

md5 7c063e5f1eba8a1b189d28d4849c0fe8
sha1 1df510747895b38684218241703e552fcd411bbe
sha256 3b490902c51d1a81e4eb568fa46bfb6fb27b50d51f5db3a31ce55ea8a2a4d39d
sha512 b79a049ab07850e4ad7f75642a2cd0916a875dab4ed4ebf4383f7b7ab9a7093bf94cc2750985e852f979473ad90737da8348342ac73918f69721a64b21760b5f
ripemd-160 4f712152db0e4c52ef40be1a66794956328326c8

81015616 as geometric shapes

Circle

Radius = n
Diameter 162031232
Circumference 509036128.1033
Area 2.0619937742272E+16

Sphere

Radius = n
Volume 2.2273826107624E+24
Surface area 8.2479750969088E+16
Circumference 509036128.1033

Square

Length = n
Perimeter 324062464
Area 6563530035859456
Diagonal 114573382.91121

Cube

Length = n
Surface area 39381180215156736
Volume 5.3174842898966E+23
Space diagonal 140323163.11849

Equilateral Triangle

Length = n
Perimeter 243046848
Area 2.8420918747782E+15
Altitude 70161581.559245

Triangular Pyramid

Length = n
Surface area 2.8420918747782E+15
Volume 6.2667153337313E+22
Height 38191127.63707