81359904 (number)

81359904 is an even 8-digits composite number following 81359903 and preceding 81359905. In scientific notation, it is written as 8.1359904 × 10^7. The sum of its digits is 39. It has a total of 7 prime factors and 24 positive divisors. There are 27119936 positive integers (up to 81359904) that are relatively prime to 81359904.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1359904 × 10^7
Engineering notation 8.1359904 × 10^6

Prime Factorization of 81359904

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 847499

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5084994
Product of the distinct prime numbers

The prime factorization of 81359904 is 2 × 2 × 2 × 2 × 2 × 3 × 847499. Since it has a total of 7 prime factors.

Most popular turbo-numbers

1, 7, 60, 3, 689, 886, 2340, 1299, 30663, 42551, 768639, 937839, 7896539, 8767126, 73857515, 21725224, 719969877, 495685841, 5197730089, 1015917013

Basic calculations (n = 81359904)

Multiplication

n×y
n×2 162719808
n×3 244079712
n×4 325439616
n×5 406799520

Division

n÷y
n÷2 40679952
n÷3 27119968
n÷3 20339976
n÷5 16271980.8

Exponentiation

ny
n2 6619433978889216
n3 5.3855651305676E+23
n4 4.3816906200873E+31
n5 3.56493928208E+39

Nth Root

y√n
2√n 9019.9725055013
3√n 433.31475318099
4√n 94.97353581657
5√n 38.201646850488

Divisors of 81359904

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 847499, 1694998, 2542497, 3389996, 5084994, 6779992, 10169988, 13559984, 20339976, 27119968, 40679952, 81359904

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81359903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81359904 can be divided by 24 positive divisors. The sum of these divisors (counting 81359904) is 1, the average is 0.041666666666667.

Base conversion 81359904

Base System Value
2 Binary 100110110010111010000100000
3 Ternary 12200002111210210
4 Quaternary 10312113100200
5 Quinary 131312004104
6 Senary 12023454120
8 Octal 466272040
10 Decimal 81359904
12 Duodecimal 232b7340
16 Hexadecimal 4d97420
20 Vigesimal 1589jf4
36 Base36 1cftpc

Cryptographic Hash Functions

md5 92c8d71ba34d7e8999767230a5cb2635
sha1 0ef5b82d54edb7a205b99ec065e4d506103fa6a7
sha256 f19e86a159007edc70cfe902fbd1105ad3e6631b0e57f1eca79c8fb57f8dba4d
sha512 cb89c5ee0a8a76c6c6591e86598dfa1f0d01599d4f8dd178acc9c1093a4fe960be0211296792028f913dd2cec29c43bd36e18d06847d05db85a9dde509f45371
ripemd-160 c1d8060a2f8be5a9e23f8c5d309f3ef682cecd8f

81359904 as geometric shapes

Circle

Radius = n
Diameter 162719808
Circumference 511199353.40634
Area 2.0795565159001E+16

Sphere

Radius = n
Volume 2.2559002466161E+24
Surface area 8.3182260636004E+16
Circumference 511199353.40634

Square

Length = n
Perimeter 325439616
Area 6619433978889216
Diagonal 115060279.67017

Cube

Length = n
Surface area 39716603873335296
Volume 5.3855651305676E+23
Space diagonal 140919487.42693

Equilateral Triangle

Length = n
Perimeter 244079712
Area 2.866298992196E+15
Altitude 70459743.713463

Triangular Pyramid

Length = n
Surface area 2.866298992196E+15
Volume 6.3469493739103E+22
Height 38353426.556724