81609788 (number)

81609788 is an even 8-digits composite number following 81609787 and preceding 81609789. In scientific notation, it is written as 8.1609788 × 10^7. The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors. There are 35683200 positive integers (up to 81609788) that are relatively prime to 81609788.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred nine thousand seven hundred eighty-eight

Notation

Scientific notation 8.1609788 × 10^7
Engineering notation 8.1609788 × 10^6

Prime Factorization of 81609788

Prime Factorization 2 × 2 × 13 × 19 × 82601

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40804894
Product of the distinct prime numbers

The prime factorization of 81609788 is 2 × 2 × 13 × 19 × 82601. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 1, 98, 41, 98, 788, 9751, 7874, 80964, 44547, 923417, 691359, 6416526, 2777193, 44360631, 78740650, 441859273, 379974095, 3873484838, 516874194

Basic calculations (n = 81609788)

Multiplication

n×y
n×2 163219576
n×3 244829364
n×4 326439152
n×5 408048940

Division

n÷y
n÷2 40804894
n÷3 27203262.666667
n÷3 20402447
n÷5 16321957.6

Exponentiation

ny
n2 6660157497404944
n3 5.4353404140983E+23
n4 4.4357697890239E+31
n5 3.6200223209905E+39

Nth Root

y√n
2√n 9033.8135911696
3√n 433.75791889249
4√n 95.046376002295
5√n 38.225084130608

Divisors of 81609788

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 82601, 165202, 330404, 1073813, 1569419, 2147626, 3138838, 4295252, 6277676, 20402447, 40804894, 81609788

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 -81609787
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 81609788 can be divided by 24 positive divisors. The sum of these divisors (counting 81609788) is 1, the average is 0.041666666666667.

Base conversion 81609788

Base System Value
2 Binary 100110111010100010000111100
3 Ternary 12200120012120202
4 Quaternary 10313110100330
5 Quinary 131343003123
6 Senary 12033103032
8 Octal 467242074
10 Decimal 81609788
12 Duodecimal 233b7a78
16 Hexadecimal 4dd443c
20 Vigesimal 15a1498
36 Base36 1cl6ik

Cryptographic Hash Functions

md5 944896ebd4a50f1ac1291f8428e7b3b8
sha1 3dbc9c7f55fa040b275de4c4d2de8e7c167e08da
sha256 d2eaacd42d4fa2aecc27feaf7e69dbcfc086ae717f55ebf6510004bba1ae660e
sha512 f3e2561fd674fd2a7107a81302e48569e59635ff519de36abecb095904e5a77fc65c5525e2c13422002c567bc2b97931e83d4590696f7741a42b0bb071ec3358
ripemd-160 9c51850c82853c7ef47c9ee3a85056ce837d7a83

81609788 as geometric shapes

Circle

Radius = n
Diameter 163219576
Circumference 512769420.88364
Area 2.0923501865598E+16

Sphere

Radius = n
Volume 2.2767500686254E+24
Surface area 8.3694007462393E+16
Circumference 512769420.88364

Square

Length = n
Perimeter 326439152
Area 6660157497404944
Diagonal 115413669.01199

Cube

Length = n
Surface area 39960944984429664
Volume 5.4353404140983E+23
Space diagonal 141352299.21092

Equilateral Triangle

Length = n
Perimeter 244829364
Area 2.883932792979E+15
Altitude 70676149.605462

Triangular Pyramid

Length = n
Surface area 2.883932792979E+15
Volume 6.4056101081103E+22
Height 38471223.003998