81330290 (number)

81330290 is an even 8-digits composite number following 81330289 and preceding 81330291. In scientific notation, it is written as 8.1330290 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 32297520 positive integers (up to 81330290) that are relatively prime to 81330290.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty thousand two hundred ninety

Notation

Scientific notation 8.1330290 × 10^7
Engineering notation 8.1330290 × 10^6

Prime Factorization of 81330290

Prime Factorization 2 × 5 × 139 × 58511

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81330290
Product of the distinct prime numbers

The prime factorization of 81330290 is 2 × 5 × 139 × 58511. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 51, 100, 763, 909, 5394, 7493, 15427, 71434, 572997, 606290, 5000784, 6198513, 4213655, 79781534, 480711292, 666868981, 1782474332, 2519418301

Basic calculations (n = 81330290)

Multiplication

n×y
n×2 162660580
n×3 243990870
n×4 325321160
n×5 406651450

Division

n÷y
n÷2 40665145
n÷3 27110096.666667
n÷3 20332572.5
n÷5 16266058

Exponentiation

ny
n2 6614616071484100
n3 5.3796864333246E+23
n4 4.3753145773136E+31
n5 3.5584560341414E+39

Nth Root

y√n
2√n 9018.3307768123
3√n 433.26217306186
4√n 94.964892338234
5√n 38.198865459993

Divisors of 81330290

1, 2, 5, 10, 139, 278, 695, 1390, 58511, 117022, 292555, 585110, 8133029, 16266058, 40665145, 81330290

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 -81330289
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 81330290 can be divided by 16 positive divisors. The sum of these divisors (counting 81330290) is 1, the average is 0.0625.

Base conversion 81330290

Base System Value
2 Binary 100110110010000000001110010
3 Ternary 12200001000011222
4 Quaternary 10312100001302
5 Quinary 131310032130
6 Senary 12023105042
8 Octal 466200162
10 Decimal 81330290
12 Duodecimal 232a2182
16 Hexadecimal 4d90072
20 Vigesimal 15865ea
36 Base36 1cf6uq

Cryptographic Hash Functions

md5 8ae6680d3b651dd7850ff280889b782d
sha1 d3319177be70a69a23ffa5a1d27d88939144dd61
sha256 7bfa6d4b39c9a7a7285306d429094353d3e8c89f01373acfd7fef9025b206a17
sha512 dff06c2531b3b82e274d168f35a590c9a74098a9af14f1da1d7187b8db9255485e2e97bf2936a4cef878ba1e78084f17502c8532abb883d43f324172d0572bd8
ripemd-160 c9c56d20065ec35e75cd3bf0233798c3036c3cdb

81330290 as geometric shapes

Circle

Radius = n
Diameter 162660580
Circumference 511013283.15665
Area 2.0780429256491E+16

Sphere

Radius = n
Volume 2.2534377836732E+24
Surface area 8.3121717025966E+16
Circumference 511013283.15665

Square

Length = n
Perimeter 325321160
Area 6614616071484100
Diagonal 115018399.14974

Cube

Length = n
Surface area 39687696428904600
Volume 5.3796864333246E+23
Space diagonal 140868194.47431

Equilateral Triangle

Length = n
Perimeter 243990870
Area 2.864212777093E+15
Altitude 70434097.237155

Triangular Pyramid

Length = n
Surface area 2.864212777093E+15
Volume 6.3400212627685E+22
Height 38339466.383246