81649416 (number)

81649416 is an even 8-digits composite number following 81649415 and preceding 81649417. In scientific notation, it is written as 8.1649416 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 26809728 positive integers (up to 81649416) that are relatively prime to 81649416.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty-nine thousand four hundred sixteen

Notation

Scientific notation 8.1649416 × 10^7
Engineering notation 8.1649416 × 10^6

Prime Factorization of 81649416

Prime Factorization 2 × 2 × 2 × 3 × 67 × 50777

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20412354
Product of the distinct prime numbers

The prime factorization of 81649416 is 2 × 2 × 2 × 3 × 67 × 50777. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 5, 96, 20, 134, 583, 113, 2644, 2524, 93469, 743438, 29744, 6331767, 2974656, 60475466, 93746373, 795683282, 827256390, 8012514418, 7102429867

Basic calculations (n = 81649416)

Multiplication

n×y
n×2 163298832
n×3 244948248
n×4 326597664
n×5 408247080

Division

n÷y
n÷2 40824708
n÷3 27216472
n÷3 20412354
n÷5 16329883.2

Exponentiation

ny
n2 6666627133141056
n3 5.4432621211072E+23
n4 4.4443917332333E+31
n5 3.6288198949372E+39

Nth Root

y√n
2√n 9036.0066401038
3√n 433.82811544522
4√n 95.057912033159
5√n 38.228795669476

Divisors of 81649416

1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 50777, 101554, 152331, 203108, 304662, 406216, 609324, 1218648, 3402059, 6804118, 10206177, 13608236, 20412354, 27216472, 40824708, 81649416

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 -81649415
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 81649416 can be divided by 32 positive divisors. The sum of these divisors (counting 81649416) is 1, the average is 0.03125.

Base conversion 81649416

Base System Value
2 Binary 100110111011101111100001000
3 Ternary 12200122012221110
4 Quaternary 10313131330020
5 Quinary 131400240131
6 Senary 12034010320
8 Octal 467357410
10 Decimal 81649416
12 Duodecimal 234169a0
16 Hexadecimal 4dddf08
20 Vigesimal 15a63ag
36 Base36 1cm13c

Cryptographic Hash Functions

md5 3e48303e0ef559edf5af6df08100a1a6
sha1 f5ccb068f6468020ece03467ec59e22b177fb676
sha256 bf6d43b9355a51d896c6cad44ddbe9767ec8add070ea2f366a36ea2a5ba6816f
sha512 28cbf029cf11a9c25beb54bf13c955cfcf8b601aae31fada0584ca4e8a77a3d520d86b9c1eaeb5ee6475f5799d42784ad30b13e9a7736557fe6d0f20c18083ff
ripemd-160 614684b043e8b61718a2932e1d641bc40aa95610

81649416 as geometric shapes

Circle

Radius = n
Diameter 163298832
Circumference 513018410.95099
Area 2.0943826825698E+16

Sphere

Radius = n
Volume 2.2800683054979E+24
Surface area 8.3775307302793E+16
Circumference 513018410.95099

Square

Length = n
Perimeter 326597664
Area 6666627133141056
Diagonal 115469711.46704

Cube

Length = n
Surface area 39999762798846336
Volume 5.4432621211072E+23
Space diagonal 141420936.92033

Equilateral Triangle

Length = n
Perimeter 244948248
Area 2.8867342274294E+15
Altitude 70710468.460164

Triangular Pyramid

Length = n
Surface area 2.8867342274294E+15
Volume 6.4149459293513E+22
Height 38489903.822348