81718260 (number)

81718260 is an even 8-digits composite number following 81718259 and preceding 81718261. In scientific notation, it is written as 8.1718260 × 10^7. The sum of its digits is 33. It has a total of 7 prime factors and 72 positive divisors. There are 20112768 positive integers (up to 81718260) that are relatively prime to 81718260.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred eighteen thousand two hundred sixty

Notation

Scientific notation 8.1718260 × 10^7
Engineering notation 8.1718260 × 10^6

Prime Factorization of 81718260

Prime Factorization 2 × 2 × 3 × 5 × 13 × 13 × 8059

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 3143010
Product of the distinct prime numbers

The prime factorization of 81718260 is 2 × 2 × 3 × 5 × 13 × 13 × 8059. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 6, 1, 76, 968, 163, 8894, 4849, 50070, 85964, 418249, 262426, 6861854, 220131, 3948148, 79119527, 186680211, 544296786, 3709425121, 1180759352

Basic calculations (n = 81718260)

Multiplication

n×y
n×2 163436520
n×3 245154780
n×4 326873040
n×5 408591300

Division

n÷y
n÷2 40859130
n÷3 27239420
n÷3 20429565
n÷5 16343652

Exponentiation

ny
n2 6677874017427600
n3 5.4570424520339E+23
n4 4.4594001392635E+31
n5 3.6441442002437E+39

Nth Root

y√n
2√n 9039.8152635991
3√n 433.95001087752
4√n 95.077943097225
5√n 38.235240139409

Divisors of 81718260

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 8059, 10140, 16118, 24177, 32236, 40295, 48354, 80590, 96708, 104767, 120885, 161180, 209534, 241770, 314301, 419068, 483540, 523835, 628602, 1047670, 1257204, 1361971, 1571505, 2095340, 2723942, 3143010, 4085913, 5447884, 6286020, 6809855, 8171826, 13619710, 16343652, 20429565, 27239420, 40859130, 81718260

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81718259
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81718260 can be divided by 72 positive divisors. The sum of these divisors (counting 81718260) is 1, the average is 0.013888888888889.

Base conversion 81718260

Base System Value
2 Binary 100110111101110101111110100
3 Ternary 12200202201101020
4 Quaternary 10313232233310
5 Quinary 131404441020
6 Senary 12035301140
8 Octal 467565764
10 Decimal 81718260
12 Duodecimal 2344a7b0
16 Hexadecimal 4deebf4
20 Vigesimal 15aefd0
36 Base36 1cni7o

Cryptographic Hash Functions

md5 e81237e2518b48bfea3b6dc42baa8e13
sha1 6e3b2562848cad41d6e5dee4fc749dfdb2e2ac80
sha256 b81cc047a31f6d19e887478ea2c9fb729b34626b734d66592f7753978e7f730b
sha512 3e445615f913e2dc9a1edd323a15f9395d7583652651378bfe9cbaaca0ebbbb28480f667e5be767fb06dd089f5e15c1a1ca7d0610e5fc243c5e57839f5930d74
ripemd-160 db0e8152d2e13f3c59852d938a7641a0010581d0

81718260 as geometric shapes

Circle

Radius = n
Diameter 163436520
Circumference 513450970.56028
Area 2.0979159954749E+16

Sphere

Radius = n
Volume 2.2858405970183E+24
Surface area 8.3916639818995E+16
Circumference 513450970.56028

Square

Length = n
Perimeter 326873040
Area 6677874017427600
Diagonal 115567071.58553

Cube

Length = n
Surface area 40067244104565600
Volume 5.4570424520339E+23
Space diagonal 141540178.22612

Equilateral Triangle

Length = n
Perimeter 245154780
Area 2.8916042711822E+15
Altitude 70770089.113062

Triangular Pyramid

Length = n
Surface area 2.8916042711822E+15
Volume 6.4311862050934E+22
Height 38522357.195177