81506711 (number)

81506711 is an odd 8-digits composite number following 81506710 and preceding 81506712. In scientific notation, it is written as 8.1506711 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 68210400 positive integers (up to 81506711) that are relatively prime to 81506711.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred six thousand seven hundred eleven

Notation

Scientific notation 8.1506711 × 10^7
Engineering notation 8.1506711 × 10^6

Prime Factorization of 81506711

Prime Factorization 13 × 11 × 587 × 971

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81506711
Product of the distinct prime numbers

The prime factorization of 81506711 is 13 × 11 × 587 × 971. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 3, 54, 71, 938, 399, 9349, 9996, 39970, 65865, 569730, 48524, 5807865, 2055117, 39523800, 41416128, 949786452, 362082710, 4675646360, 1014373392

Basic calculations (n = 81506711)

Multiplication

n×y
n×2 163013422
n×3 244520133
n×4 326026844
n×5 407533555

Division

n÷y
n÷2 40753355.5
n÷3 27168903.666667
n÷3 20376677.75
n÷5 16301342.2

Exponentiation

ny
n2 6643343938037521
n3 5.4147711443123E+23
n4 4.413401867906E+31
n5 3.5972187057427E+39

Nth Root

y√n
2√n 9028.106722896
3√n 433.57522306997
4√n 95.016349766217
5√n 38.215423232743

Divisors of 81506711

1, 11, 13, 143, 587, 971, 6457, 7631, 10681, 12623, 83941, 138853, 569977, 6269747, 7409701, 81506711

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 -81506710
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 81506711 can be divided by 16 positive divisors. The sum of these divisors (counting 81506711) is 1, the average is 0.0625.

Base conversion 81506711

Base System Value
2 Binary 100110110111011000110010111
3 Ternary 12200100222012002
4 Quaternary 10312323012113
5 Quinary 131331203321
6 Senary 12030545515
8 Octal 466730627
10 Decimal 81506711
12 Duodecimal 2336829b
16 Hexadecimal 4dbb197
20 Vigesimal 15986fb
36 Base36 1ciyzb

Cryptographic Hash Functions

md5 5522c99bdb6b3b4fbffef9fd915f342e
sha1 9a0098d9f052a3922c4c79a48d9f40d74cf122e8
sha256 133ea308bb72cc7bba8e01a91215954f4dc1fca316852ee7a82c08e1f2286afa
sha512 7376253add5fa5d39f701ca0814422ac3d0da7faf0cac11c626548b560026cf86dab3456d8e016f18f85bd52d15822aa2b7d405f5bda8e71194bb3686ca0612f
ripemd-160 6a9a6d255742f8e0a43dd4264e814389eea61327

81506711 as geometric shapes

Circle

Radius = n
Diameter 163013422
Circumference 512121768.99173
Area 2.0870680511009E+16

Sphere

Radius = n
Volume 2.2681340330455E+24
Surface area 8.3482722044036E+16
Circumference 512121768.99173

Square

Length = n
Perimeter 326026844
Area 6643343938037521
Diagonal 115267896.12062

Cube

Length = n
Surface area 39860063628225126
Volume 5.4147711443123E+23
Space diagonal 141173764.60983

Equilateral Triangle

Length = n
Perimeter 244520133
Area 2.8766523082089E+15
Altitude 70586882.304917

Triangular Pyramid

Length = n
Surface area 2.8766523082089E+15
Volume 6.3813689911941E+22
Height 38422632.040208