81738369 (number)

81738369 is an odd 8-digits composite number following 81738368 and preceding 81738370. In scientific notation, it is written as 8.1738369 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 54492228 positive integers (up to 81738369) that are relatively prime to 81738369.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand three hundred sixty-nine

Notation

Scientific notation 8.1738369 × 10^7
Engineering notation 8.1738369 × 10^6

Prime Factorization of 81738369

Prime Factorization 9 × 3 × 3027347

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81738369
Product of the distinct prime numbers

The prime factorization of 81738369 is 9 × 3 × 3027347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 60, 65, 771, 179, 7134, 8510, 60961, 92385, 112407, 629818, 3026980, 8397746, 67372879, 68601798, 400592353, 131033546, 340066500, 4337715290

Basic calculations (n = 81738369)

Multiplication

n×y
n×2 163476738
n×3 245215107
n×4 326953476
n×5 408691845

Division

n÷y
n÷2 40869184.5
n÷3 27246123
n÷3 20434592.25
n÷5 16347673.8

Exponentiation

ny
n2 6681160966780161
n3 5.4610720045107E+23
n4 4.4637911864027E+31
n5 3.6486301113313E+39

Nth Root

y√n
2√n 9040.9274413635
3√n 433.98560302501
4√n 95.083791685878
5√n 38.237121718323

Divisors of 81738369

1, 3, 9, 27, 3027347, 9082041, 27246123, 81738369

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81738368
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738369 can be divided by 8 positive divisors. The sum of these divisors (counting 81738369) is 1, the average is 0.125.

Base conversion 81738369

Base System Value
2 Binary 100110111110011101010000001
3 Ternary 12200210201222000
4 Quaternary 10313303222001
5 Quinary 131411111434
6 Senary 12035534213
8 Octal 467635201
10 Decimal 81738369
12 Duodecimal 2345a369
16 Hexadecimal 4df3a81
20 Vigesimal 15ah5i9
36 Base36 1cnxq9

Cryptographic Hash Functions

md5 92e483e73057f078e7e40791f5192253
sha1 ffe77b81f20d2d7d9b6ae12700008a398e26b222
sha256 834d03f000959d1fbca8c96c98d451713cc8a8799f7f185efc9cc111c310374f
sha512 3e990134b5c64b2e5b8f9985e18568ddbdcce0cfe0e656ffeecfc45faf8c85838693546493ff0c50371c8e60faea32cac8c3f92fe92b85d293ec3cc8755ecb75
ripemd-160 f2f38cc12968167b230455e2479faedaf32e36e8

81738369 as geometric shapes

Circle

Radius = n
Diameter 163476738
Circumference 513577319.13362
Area 2.0989486210687E+16

Sphere

Radius = n
Volume 2.2875284920128E+24
Surface area 8.395794484275E+16
Circumference 513577319.13362

Square

Length = n
Perimeter 326953476
Area 6681160966780161
Diagonal 115595510.00606

Cube

Length = n
Surface area 40086965800680966
Volume 5.4610720045107E+23
Space diagonal 141575008.03581

Equilateral Triangle

Length = n
Perimeter 245215107
Area 2.8930275620023E+15
Altitude 70787504.017906

Triangular Pyramid

Length = n
Surface area 2.8930275620023E+15
Volume 6.4359350782293E+22
Height 38531836.668686