81506130 (number)

81506130 is an even 8-digits composite number following 81506129 and preceding 81506131. In scientific notation, it is written as 8.1506130 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors. There are 21033600 positive integers (up to 81506130) that are relatively prime to 81506130.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred six thousand one hundred thirty

Notation

Scientific notation 8.1506130 × 10^7
Engineering notation 8.1506130 × 10^6

Prime Factorization of 81506130

Prime Factorization 2 × 3 × 5 × 31 × 87641

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81506130
Product of the distinct prime numbers

The prime factorization of 81506130 is 2 × 3 × 5 × 31 × 87641. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 9, 92, 66, 817, 934, 4801, 1128, 45160, 25035, 315857, 931906, 2015406, 4511562, 9706855, 37922661, 133474835, 826523613, 6314977028, 854447557

Basic calculations (n = 81506130)

Multiplication

n×y
n×2 163012260
n×3 244518390
n×4 326024520
n×5 407530650

Division

n÷y
n÷2 40753065
n÷3 27168710
n÷3 20376532.5
n÷5 16301226

Exponentiation

ny
n2 6643249227576900
n3 5.4146553516528E+23
n4 4.4132760299701E+31
n5 3.5970904982463E+39

Nth Root

y√n
2√n 9028.0745455496
3√n 433.57419285704
4√n 95.016180440752
5√n 38.21536875079

Divisors of 81506130

1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 87641, 175282, 262923, 438205, 525846, 876410, 1314615, 2629230, 2716871, 5433742, 8150613, 13584355, 16301226, 27168710, 40753065, 81506130

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81506129
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81506130 can be divided by 32 positive divisors. The sum of these divisors (counting 81506130) is 1, the average is 0.03125.

Base conversion 81506130

Base System Value
2 Binary 100110110111010111101010010
3 Ternary 12200100221101120
4 Quaternary 10312322331102
5 Quinary 131331144010
6 Senary 12030543110
8 Octal 466727522
10 Decimal 81506130
12 Duodecimal 23367a96
16 Hexadecimal 4dbaf52
20 Vigesimal 159856a
36 Base36 1ciyj6

Cryptographic Hash Functions

md5 b6ba6af74b54f2c15327c9055d62943a
sha1 63b24233de71e3862210c0af4154460c29a1bc36
sha256 b1e011f1ab911d09c0e262c39501b5d5d993deb0733c8625fc9efc03a8895c63
sha512 b9448d6253fa14dd66ac92b9e1676e8a5e48d197f22a24ce9aea7b3381816b40638584d8ec1f914c75af17fc2b1f50b9fa6df76192e3542c9567e36e6cac1c28
ripemd-160 ec72db01106902b941c6f170c50d5d2273775602

81506130 as geometric shapes

Circle

Radius = n
Diameter 163012260
Circumference 512118118.46107
Area 2.0870382969322E+16

Sphere

Radius = n
Volume 2.2680855299298E+24
Surface area 8.3481531877287E+16
Circumference 512118118.46107

Square

Length = n
Perimeter 326024520
Area 6643249227576900
Diagonal 115267074.46254

Cube

Length = n
Surface area 39859495365461400
Volume 5.4146553516528E+23
Space diagonal 141172758.28831

Equilateral Triangle

Length = n
Perimeter 244518390
Area 2.8766112973765E+15
Altitude 70586379.144157

Triangular Pyramid

Length = n
Surface area 2.8766112973765E+15
Volume 6.3812325282362E+22
Height 38422358.154182