81356564 (number)

81356564 is an even 8-digits composite number following 81356563 and preceding 81356565. In scientific notation, it is written as 8.1356564 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 40651968 positive integers (up to 81356564) that are relatively prime to 81356564.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred fifty-six thousand five hundred sixty-four

Notation

Scientific notation 8.1356564 × 10^7
Engineering notation 8.1356564 × 10^6

Prime Factorization of 81356564

Prime Factorization 2 × 2 × 1789 × 11369

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40678282
Product of the distinct prime numbers

The prime factorization of 81356564 is 2 × 2 × 1789 × 11369. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 8, 1, 35, 443, 14, 4660, 6234, 72257, 75174, 996442, 922042, 7233823, 220467, 64474856, 95831094, 651229598, 455289237, 2555674385, 7619322905

Basic calculations (n = 81356564)

Multiplication

n×y
n×2 162713128
n×3 244069692
n×4 325426256
n×5 406782820

Division

n÷y
n÷2 40678282
n÷3 27118854.666667
n÷3 20339141
n÷5 16271312.8

Exponentiation

ny
n2 6618890505886096
n3 5.3849018905111E+23
n4 4.3809711528909E+31
n5 3.5642075998232E+39

Nth Root

y√n
2√n 9019.7873589126
3√n 433.3088235973
4√n 94.972561084308
5√n 38.201333193294

Divisors of 81356564

1, 2, 4, 1789, 3578, 7156, 11369, 22738, 45476, 20339141, 40678282, 81356564

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81356563
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81356564 can be divided by 12 positive divisors. The sum of these divisors (counting 81356564) is 1, the average is 0.083333333333333.

Base conversion 81356564

Base System Value
2 Binary 100110110010110011100010100
3 Ternary 12200002100020002
4 Quaternary 10312112130110
5 Quinary 131311402224
6 Senary 12023430432
8 Octal 466263424
10 Decimal 81356564
12 Duodecimal 232b5418
16 Hexadecimal 4d96714
20 Vigesimal 1589b84
36 Base36 1cfr4k

Cryptographic Hash Functions

md5 62af2e045a50a6e399cc8ed2a5d689ef
sha1 b3d4c5b6ac1736b995c659f951ec84c326f6980e
sha256 e125b3b10e4850d66bbea8a21ce1b4be50aa2dc833714031811a9ba28a326404
sha512 a6cd8e0a4398d750cf054c9b63db93f2c389e8b67ba65934366bddcbf8b44c681fd8f905db110d1b4830aec80a1a2b64e47098efffa2f5ff2e0dfd5557844ceb
ripemd-160 1c4d4c441b4a786710bfc90c3c1757fd11e9e183

81356564 as geometric shapes

Circle

Radius = n
Diameter 162713128
Circumference 511178367.56742
Area 2.0793857788207E+16

Sphere

Radius = n
Volume 2.2556224292709E+24
Surface area 8.3175431152828E+16
Circumference 511178367.56742

Square

Length = n
Perimeter 325426256
Area 6618890505886096
Diagonal 115055556.19687

Cube

Length = n
Surface area 39713343035316576
Volume 5.3849018905111E+23
Space diagonal 140913702.37723

Equilateral Triangle

Length = n
Perimeter 244069692
Area 2.8660636614825E+15
Altitude 70456851.188615

Triangular Pyramid

Length = n
Surface area 2.8660636614825E+15
Volume 6.3461677380078E+22
Height 38351852.065625