666561661 (number)

666561661 is an odd 9-digits composite number following 666561660 and preceding 666561662. In scientific notation, it is written as 6.66561661 × 10^8. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 652019088 positive integers (up to 666561661) that are relatively prime to 666561661.

Interesting facts

Basic properties

Name

Name six hundred sixty-six million five hundred sixty-one thousand six hundred sixty-one

Notation

Scientific notation 6.66561661 × 10^8
Engineering notation 6.66561661 × 10^6

Prime Factorization of 666561661

Prime Factorization 47 × 2837 × 4999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 666561661
Product of the distinct prime numbers

The prime factorization of 666561661 is 47 × 2837 × 4999. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 46, 10, 655, 907, 8374, 5639, 14151, 85751, 819961, 783197, 5955562, 5818810, 52692454, 99011654, 56205123, 642449251, 6521001299, 2448396564

Basic calculations (n = 666561661)

Multiplication

n×y
n×2 1333123322
n×3 1999684983
n×4 2666246644
n×5 3332808305

Division

n÷y
n÷2 333280830.5
n÷3 222187220.33333
n÷3 166640415.25
n÷5 133312332.2

Exponentiation

ny
n2 444304447915078921
n3 2.9615631079196E+26
n4 1.9740644243712E+35
n5 1.3158356616299E+44

Nth Root

y√n
2√n 25817.855468648
3√n 873.53459687848
4√n 160.67935607491
5√n 58.179242996986

Divisors of 666561661

1, 47, 2837, 4999, 133339, 234953, 14182163, 666561661

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -666561660
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 666561661 can be divided by 8 positive divisors. The sum of these divisors (counting 666561661) is 1, the average is 0.125.

Base conversion 666561661

Base System Value
2 Binary 100111101110101110110001111101
3 Ternary 1201110020211200221
4 Quaternary 213232232301331
5 Quinary 2331114433121
6 Senary 150050421341
8 Octal 4756566175
10 Decimal 666561661
12 Duodecimal 167291851
16 Hexadecimal 27baec7d
20 Vigesimal a860431
36 Base36 b0uq9p

Cryptographic Hash Functions

md5 6bbede4f3a51e0ba3bc8ead93512ebd0
sha1 aae620a8c04b776252388c4dde33b465f1b3902d
sha256 5272f70addfe8ee1b86e60f0eeea7f625ae6883995c79f093718b5451929c28f
sha512 f8d336b0f06937dcd36d49a1b2f1d1e93b97f51484a8722175d1484f7d1d3a00182d8d801cc2a935bbcbff45964e930dc30b8653640b1bdb20a7879809dcf227
ripemd-160 a6712e9878ce7c6d2c6f60ab4d25057437e05c64

666561661 as geometric shapes

Circle

Radius = n
Diameter 1333123322
Circumference 4188130434.7244
Area 1.3958235895273E+18

Sphere

Radius = n
Volume 1.240536653731E+27
Surface area 5.5832943581091E+18
Circumference 4188130434.7244

Square

Length = n
Perimeter 2666246644
Area 444304447915078921
Diagonal 942660541.14414

Cube

Length = n
Surface area 2665826687490473526
Volume 2.9615631079196E+26
Space diagonal 1154518663.2295

Equilateral Triangle

Length = n
Perimeter 1999684983
Area 1.9238946945444E+17
Altitude 577259331.61475

Triangular Pyramid

Length = n
Surface area 1.9238946945444E+17
Volume 3.4902355942031E+25
Height 314220180.38138