81209080 (number)

81209080 is an even 8-digits composite number following 81209079 and preceding 81209081. In scientific notation, it is written as 8.1209080 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 48 positive divisors. There are 31584384 positive integers (up to 81209080) that are relatively prime to 81209080.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred nine thousand eighty

Notation

Scientific notation 8.1209080 × 10^7
Engineering notation 8.1209080 × 10^6

Prime Factorization of 81209080

Prime Factorization 2 × 2 × 2 × 37 × 5 × 37 × 1483

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 548710
Product of the distinct prime numbers

The prime factorization of 81209080 is 2 × 2 × 2 × 37 × 5 × 37 × 1483. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 8, 8, 81, 536, 452, 6614, 3250, 38234, 2060, 856629, 182485, 371190, 2322453, 52409189, 85484024, 86707112, 798099425, 7398655177, 1603698881

Basic calculations (n = 81209080)

Multiplication

n×y
n×2 162418160
n×3 243627240
n×4 324836320
n×5 406045400

Division

n÷y
n÷2 40604540
n÷3 27069693.333333
n÷3 20302270
n÷5 16241816

Exponentiation

ny
n2 6594914674446400
n3 5.3556695339029E+23
n4 4.3492899563228E+31
n5 3.5320183600622E+39

Nth Root

y√n
2√n 9011.6080695956
3√n 433.04682968275
4√n 94.929489989126
5√n 38.18747278669

Divisors of 81209080

1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1369, 1480, 1483, 2738, 2966, 5476, 5932, 6845, 7415, 10952, 11864, 13690, 14830, 27380, 29660, 54760, 54871, 59320, 109742, 219484, 274355, 438968, 548710, 1097420, 2030227, 2194840, 4060454, 8120908, 10151135, 16241816, 20302270, 40604540, 81209080

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81209079
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81209080 can be divided by 48 positive divisors. The sum of these divisors (counting 81209080) is 1, the average is 0.020833333333333.

Base conversion 81209080

Base System Value
2 Binary 100110101110010011011111000
3 Ternary 12122210211220201
4 Quaternary 10311302123320
5 Quinary 131242142310
6 Senary 12020331544
8 Octal 465623370
10 Decimal 81209080
12 Duodecimal 23243bb4
16 Hexadecimal 4d726f8
20 Vigesimal 157b2e0
36 Base36 1cclbs

Cryptographic Hash Functions

md5 d595c4869c4113e9c33b9614c7893942
sha1 874e076bd5356ddd3a158cd6350aedebb576710c
sha256 801b2487d92e1cdc0d22f06f9239b7d2bfdc5ab5c784b4a1947ecefd524a719e
sha512 127baa41c7dffb316b303763c36bf516174aa1ab0bfaa5071192ec2cf16eed1b35f1f1932f4e1885185952f80d7dd6417acffd5b0023817a5d554575c7135fdb
ripemd-160 da623704e7b6d202cab010910fdbba6d11722870

81209080 as geometric shapes

Circle

Radius = n
Diameter 162418160
Circumference 510251698.26557
Area 2.0718535492292E+16

Sphere

Radius = n
Volume 2.2433776083685E+24
Surface area 8.2874141969169E+16
Circumference 510251698.26557

Square

Length = n
Perimeter 324836320
Area 6594914674446400
Diagonal 114846982.32384

Cube

Length = n
Surface area 39569488046678400
Volume 5.3556695339029E+23
Space diagonal 140658252.59593

Equilateral Triangle

Length = n
Perimeter 243627240
Area 2.8556818219307E+15
Altitude 70329126.297963

Triangular Pyramid

Length = n
Surface area 2.8556818219307E+15
Volume 6.3117170753616E+22
Height 38282327.441281