81578049 (number)

81578049 is an odd 8-digits composite number following 81578048 and preceding 81578050. In scientific notation, it is written as 8.1578049 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 46517328 positive integers (up to 81578049) that are relatively prime to 81578049.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-eight thousand forty-nine

Notation

Scientific notation 8.1578049 × 10^7
Engineering notation 8.1578049 × 10^6

Prime Factorization of 81578049

Prime Factorization 3 × 7 × 503 × 7723

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81578049
Product of the distinct prime numbers

The prime factorization of 81578049 is 3 × 7 × 503 × 7723. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 21, 13, 488, 332, 1751, 688, 13161, 26101, 568261, 95236, 5604135, 5309436, 30822166, 68860996, 40714672, 473465456, 4186428770, 110175688

Basic calculations (n = 81578049)

Multiplication

n×y
n×2 163156098
n×3 244734147
n×4 326312196
n×5 407890245

Division

n÷y
n÷2 40789024.5
n÷3 27192683
n÷3 20394512.25
n÷5 16315609.8

Exponentiation

ny
n2 6654978078646401
n3 5.4290012779374E+23
n4 4.4288733227264E+31
n5 3.6129884493617E+39

Nth Root

y√n
2√n 9032.0567425144
3√n 433.70168042717
4√n 95.037133492727
5√n 38.222110431609

Divisors of 81578049

1, 3, 7, 21, 503, 1509, 3521, 7723, 10563, 23169, 54061, 162183, 3884669, 11654007, 27192683, 81578049

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81578048
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81578049 can be divided by 16 positive divisors. The sum of these divisors (counting 81578049) is 1, the average is 0.0625.

Base conversion 81578049

Base System Value
2 Binary 100110111001100100001000001
3 Ternary 12200111121001020
4 Quaternary 10313030201001
5 Quinary 131340444144
6 Senary 12032300053
8 Octal 467144101
10 Decimal 81578049
12 Duodecimal 233a1629
16 Hexadecimal 4dcc841
20 Vigesimal 159h529
36 Base36 1cki0x

Cryptographic Hash Functions

md5 66db7466a938a3983bdd0c0d81311553
sha1 fff350ab78b6e189cb73ce4e81ac9c8c54b683d5
sha256 38c375b00839f1b4ef67448ee2881c0d57f5bc54cf5489f7277d870425128560
sha512 27d79c391d6c1aef6a22631c00b7a2c9f1f58a6773a7c089dc8d8900f407eb4a0a04d04206556879358470b5d06a267ae10799c584a1d4c806757c57fa2f0cb6
ripemd-160 09007401e9e3e36e175ca11744d92b23f28f2731

81578049 as geometric shapes

Circle

Radius = n
Diameter 163156098
Circumference 512569998.86518
Area 2.0907230241677E+16

Sphere

Radius = n
Volume 2.2740947374797E+24
Surface area 8.3628920966707E+16
Circumference 512569998.86518

Square

Length = n
Perimeter 326312196
Area 6654978078646401
Diagonal 115368783.28774

Cube

Length = n
Surface area 39929868471878406
Volume 5.4290012779374E+23
Space diagonal 141297325.65034

Equilateral Triangle

Length = n
Perimeter 244734147
Area 2.8816900388682E+15
Altitude 70648662.825172

Triangular Pyramid

Length = n
Surface area 2.8816900388682E+15
Volume 6.3981393645E+22
Height 38456261.095912