81409984 (number)

81409984 is an even 8-digits composite number following 81409983 and preceding 81409985. In scientific notation, it is written as 8.1409984 × 10^7. The sum of its digits is 43. It has a total of 8 prime factors and 28 positive divisors. There are 38562048 positive integers (up to 81409984) that are relatively prime to 81409984.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred nine thousand nine hundred eighty-four

Notation

Scientific notation 8.1409984 × 10^7
Engineering notation 8.1409984 × 10^6

Prime Factorization of 81409984

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 19 × 66949

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2544062
Product of the distinct prime numbers

The prime factorization of 81409984 is 2 × 2 × 2 × 2 × 2 × 2 × 19 × 66949. Since it has a total of 8 prime factors.

Most popular turbo-numbers

1, 5, 97, 65, 271, 404, 1669, 2082, 49507, 59795, 10383, 167021, 3369204, 6620452, 90162137, 77692811, 468218071, 319350567, 8658936638, 929995832

Basic calculations (n = 81409984)

Multiplication

n×y
n×2 162819968
n×3 244229952
n×4 325639936
n×5 407049920

Division

n÷y
n÷2 40704992
n÷3 27136661.333333
n÷3 20352496
n÷5 16281996.8

Exponentiation

ny
n2 6627585494880256
n3 5.3955162909683E+23
n4 4.3924889491947E+31
n5 3.5759245507412E+39

Nth Root

y√n
2√n 9022.7481401178
3√n 433.40364197769
4√n 94.988147366489
5√n 38.206348595479

Divisors of 81409984

1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 66949, 133898, 267796, 535592, 1071184, 1272031, 2142368, 2544062, 4284736, 5088124, 10176248, 20352496, 40704992, 81409984

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 -81409983
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 81409984 can be divided by 28 positive divisors. The sum of these divisors (counting 81409984) is 1, the average is 0.035714285714286.

Base conversion 81409984

Base System Value
2 Binary 100110110100011011111000000
3 Ternary 12200012001111121
4 Quaternary 10312203133000
5 Quinary 131320104414
6 Senary 12024522024
8 Octal 466433700
10 Decimal 81409984
12 Duodecimal 23320314
16 Hexadecimal 4da37c0
20 Vigesimal 158g4j4
36 Base36 1cgwcg

Cryptographic Hash Functions

md5 f4c76e043e6f874ec99b76a369486395
sha1 5e6156f5461dff805e53ace1b88ac6a1bda24627
sha256 c520c88e729b5105603b273268509241069e14e93f77123efeb2da2778472965
sha512 e80418210c743a8a23a1e8b082c7b562788b05d79be7ae2078aed4876cbd9f66e6a7a63296c6993d44dec1493a41277c5418d35cff789565ec60f1a3c934711d
ripemd-160 583d615be3e5c5cf310cd74ebc7fed6330154409

81409984 as geometric shapes

Circle

Radius = n
Diameter 162819968
Circumference 511514015.32653
Area 2.0821173901754E+16

Sphere

Radius = n
Volume 2.2600685789374E+24
Surface area 8.3284695607016E+16
Circumference 511514015.32653

Square

Length = n
Perimeter 325639936
Area 6627585494880256
Diagonal 115131103.48538

Cube

Length = n
Surface area 39765512969281536
Volume 5.3955162909683E+23
Space diagonal 141006228.53137

Equilateral Triangle

Length = n
Perimeter 244229952
Area 2.8698287021598E+15
Altitude 70503114.265685

Triangular Pyramid

Length = n
Surface area 2.8698287021598E+15
Volume 6.3586769289103E+22
Height 38377034.495126