81542016 (number)

81542016 is an even 8-digits composite number following 81542015 and preceding 81542017. In scientific notation, it is written as 8.1542016 × 10^7. The sum of its digits is 27. It has a total of 9 prime factors and 32 positive divisors. There are 27180288 positive integers (up to 81542016) that are relatively prime to 81542016.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred forty-two thousand sixteen

Notation

Scientific notation 8.1542016 × 10^7
Engineering notation 8.1542016 × 10^6

Prime Factorization of 81542016

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 9 × 70783

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 1274094
Product of the distinct prime numbers

The prime factorization of 81542016 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 9 × 70783. Since it has a total of 9 prime factors.

Most popular turbo-numbers

10, 2, 46, 2, 226, 677, 9222, 402, 34762, 94993, 659646, 305184, 4972026, 1360210, 49768086, 20422630, 635079115, 352040718, 6679696331, 1595069959

Basic calculations (n = 81542016)

Multiplication

n×y
n×2 163084032
n×3 244626048
n×4 326168064
n×5 407710080

Division

n÷y
n÷2 40771008
n÷3 27180672
n÷3 20385504
n÷5 16308403.2

Exponentiation

ny
n2 6649100373344256
n3 5.4218104902884E+23
n4 4.4210535774807E+31
n5 3.6050162155179E+39

Nth Root

y√n
2√n 9030.0617938085
3√n 433.63781572212
4√n 95.026637285597
5√n 38.218733295921

Divisors of 81542016

1, 2, 4, 8, 9, 16, 18, 32, 36, 64, 72, 128, 144, 288, 576, 1152, 70783, 141566, 283132, 566264, 637047, 1132528, 1274094, 2265056, 2548188, 4530112, 5096376, 9060224, 10192752, 20385504, 40771008, 81542016

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81542015
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81542016 can be divided by 32 positive divisors. The sum of these divisors (counting 81542016) is 1, the average is 0.03125.

Base conversion 81542016

Base System Value
2 Binary 100110111000011101110000000
3 Ternary 12200102202121200
4 Quaternary 10313003232000
5 Quinary 131333321031
6 Senary 12031421200
8 Octal 467035600
10 Decimal 81542016
12 Duodecimal 23384800
16 Hexadecimal 4dc3b80
20 Vigesimal 159cf0g
36 Base36 1cjq80

Cryptographic Hash Functions

md5 23aa4e18bf8c42fbe811cbb399d722e1
sha1 ecb16085284ebe94f9ddfa9ff80c8981a8b5a0e8
sha256 d88bf3ea94b55eae67b482d163a6840bf68a803b1ff186968a96c019ca1361b8
sha512 2af52bb1e36c2afa1eaaf4c6d4a08cd24bf2ccdbbded3431cb42722f64ccd1603cf8df4761d5644b5620a0ea31756daa56c62060feb6d7b578b51e7008090b49
ripemd-160 f64d21f9b9698544043efa885f59411a2737f7b7

81542016 as geometric shapes

Circle

Radius = n
Diameter 163084032
Circumference 512343596.849
Area 2.0888764885879E+16

Sphere

Radius = n
Volume 2.2710826673928E+24
Surface area 8.3555059543518E+16
Circumference 512343596.849

Square

Length = n
Perimeter 326168064
Area 6649100373344256
Diagonal 115317824.93044

Cube

Length = n
Surface area 39894602240065536
Volume 5.4218104902884E+23
Space diagonal 141234914.66359

Equilateral Triangle

Length = n
Perimeter 244626048
Area 2.8791449178144E+15
Altitude 70617457.331797

Triangular Pyramid

Length = n
Surface area 2.8791449178144E+15
Volume 6.3896649399855E+22
Height 38439274.976815