661497809 (number)

661497809 is an odd 9-digits composite number following 661497808 and preceding 661497810. In scientific notation, it is written as 6.61497809 × 10^8. The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors. There are 548009280 positive integers (up to 661497809) that are relatively prime to 661497809.

Interesting facts

Basic properties

Name

Name six hundred sixty-one million four hundred ninety-seven thousand eight hundred nine

Notation

Scientific notation 6.61497809 × 10^8
Engineering notation 6.61497809 × 10^6

Prime Factorization of 661497809

Prime Factorization 7 × 31 × 1093 × 2789

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 661497809
Product of the distinct prime numbers

The prime factorization of 661497809 is 7 × 31 × 1093 × 2789. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 63, 82, 518, 393, 9419, 4967, 59024, 15202, 382806, 114585, 1008525, 9823818, 34098285, 23094013, 93066825, 847460910, 1961712015, 6546495642

Basic calculations (n = 661497809)

Multiplication

n×y
n×2 1322995618
n×3 1984493427
n×4 2645991236
n×5 3307489045

Division

n÷y
n÷2 330748904.5
n÷3 220499269.66667
n÷3 165374452.25
n÷5 132299561.8

Exponentiation

ny
n2 437579351311800481
n3 2.894577821564E+26
n4 1.9147568869446E+35
n5 1.2666074854815E+44

Nth Root

y√n
2√n 25719.599705283
3√n 871.3168980494
4√n 160.37331356957
5√n 58.090575899241

Divisors of 661497809

1, 7, 31, 217, 1093, 2789, 7651, 19523, 33883, 86459, 237181, 605213, 3048377, 21338639, 94499687, 661497809

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 -661497808
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 661497809 can be divided by 16 positive divisors. The sum of these divisors (counting 661497809) is 1, the average is 0.0625.

Base conversion 661497809

Base System Value
2 Binary 100111011011011010011111010001
3 Ternary 1201002201120101212
4 Quaternary 213123122133101
5 Quinary 2323320412214
6 Senary 145350105505
8 Octal 4733323721
10 Decimal 661497809
12 Duodecimal 16564b295
16 Hexadecimal 276da7d1
20 Vigesimal a6e74a9
36 Base36 axu6z5

Cryptographic Hash Functions

md5 49bdb734fda6a29cc1b1dea38f285359
sha1 148a7032dd34328c1442aa3b68d67fd7b1580dc1
sha256 dc5c9bae900fd84c0bd27e202aaf7f6972b63cddcafabf4678ff5947d494a108
sha512 c95123070f988b7f01ba6df1854b2ce81cbf6264274faf53df734daf207e16cab2ce736fe4a02b4fcbe9c5b63f3ff64d8b85d94f8f5d469c8a52a6838e044f14
ripemd-160 c4e033eb6d0e219ad81694bd7277194273403aa9

661497809 as geometric shapes

Circle

Radius = n
Diameter 1322995618
Circumference 4156313314.2403
Area 1.3746960754437E+18

Sphere

Radius = n
Volume 1.2124779225959E+27
Surface area 5.498784301775E+18
Circumference 4156313314.2403

Square

Length = n
Perimeter 2645991236
Area 437579351311800481
Diagonal 935499172.96789

Cube

Length = n
Surface area 2625476107870802886
Volume 2.894577821564E+26
Space diagonal 1145747814.2835

Equilateral Triangle

Length = n
Perimeter 1984493427
Area 1.8947741720377E+17
Altitude 572873907.14175

Triangular Pyramid

Length = n
Surface area 1.8947741720377E+17
Volume 3.4112926771668E+25
Height 311833057.65596