81576989 (number)

81576989 is an odd 8-digits composite number following 81576988 and preceding 81576990. In scientific notation, it is written as 8.1576989 × 10^7. The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors. There are 73104768 positive integers (up to 81576989) that are relatively prime to 81576989.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-six thousand nine hundred eighty-nine

Notation

Scientific notation 8.1576989 × 10^7
Engineering notation 8.1576989 × 10^6

Prime Factorization of 81576989

Prime Factorization 73 × 13 × 67 × 1283

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81576989
Product of the distinct prime numbers

The prime factorization of 81576989 is 73 × 13 × 67 × 1283. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 43, 2, 658, 415, 6061, 2950, 74518, 99679, 351861, 920500, 9899062, 4548303, 92172304, 22834403, 877307439, 995073319, 2754857564, 9739235380

Basic calculations (n = 81576989)

Multiplication

n×y
n×2 163153978
n×3 244730967
n×4 326307956
n×5 407884945

Division

n÷y
n÷2 40788494.5
n÷3 27192329.666667
n÷3 20394247.25
n÷5 16315397.8

Exponentiation

ny
n2 6654805134306121
n3 5.4287896523843E+23
n4 4.4286431375587E+31
n5 3.6127537251755E+39

Nth Root

y√n
2√n 9031.9980624444
3√n 433.69980195709
4√n 95.036824770425
5√n 38.222011101831

Divisors of 81576989

1, 13, 67, 73, 871, 949, 1283, 4891, 16679, 63583, 85961, 93659, 1117493, 1217567, 6275153, 81576989

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 -81576988
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 81576989 can be divided by 16 positive divisors. The sum of these divisors (counting 81576989) is 1, the average is 0.0625.

Base conversion 81576989

Base System Value
2 Binary 100110111001100010000011101
3 Ternary 12200111112120222
4 Quaternary 10313030100131
5 Quinary 131340430424
6 Senary 12032251125
8 Octal 467142035
10 Decimal 81576989
12 Duodecimal 233a0aa5
16 Hexadecimal 4dcc41d
20 Vigesimal 159h299
36 Base36 1ckh7h

Cryptographic Hash Functions

md5 dc6fd1d139330223c10baa0600b69ed5
sha1 daebf8d5333e2e493cd841882c730f9cf24cc434
sha256 0de53b7095ca9d68aaf371881068abad2a4ab44ae88eea7c39c251db3a0dd6fa
sha512 4619edfa8c07515a4029696ea8a1c2bc699c16bc03a2ac8602524d6610f726f421073416c7a309312d5ee14a380976eea3fefba06afcbb06f55124cdb5c71429
ripemd-160 93ccce2e386740c5dd8ddfdf2488fa8a37c19414

81576989 as geometric shapes

Circle

Radius = n
Diameter 163153978
Circumference 512563338.68875
Area 2.0906686921008E+16

Sphere

Radius = n
Volume 2.2740060919753E+24
Surface area 8.3626747684031E+16
Circumference 512563338.68875

Square

Length = n
Perimeter 326307956
Area 6654805134306121
Diagonal 115367284.22136

Cube

Length = n
Surface area 39928830805836726
Volume 5.4287896523843E+23
Space diagonal 141295489.67649

Equilateral Triangle

Length = n
Perimeter 244730967
Area 2.8816151517721E+15
Altitude 70647744.838244

Triangular Pyramid

Length = n
Surface area 2.8816151517721E+15
Volume 6.3978899613939E+22
Height 38455761.40712