661796721 (number)

661796721 is an odd 9-digits composite number following 661796720 and preceding 661796722. In scientific notation, it is written as 6.61796721 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 431386560 positive integers (up to 661796721) that are relatively prime to 661796721.

Interesting facts

Basic properties

Name

Name six hundred sixty-one million seven hundred ninety-six thousand seven hundred twenty-one

Notation

Scientific notation 6.61796721 × 10^8
Engineering notation 6.61796721 × 10^6

Prime Factorization of 661796721

Prime Factorization 9 × 67 × 137 × 8011

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 661796721
Product of the distinct prime numbers

The prime factorization of 661796721 is 9 × 67 × 137 × 8011. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 86, 64, 538, 508, 4855, 6585, 87236, 80105, 153488, 145455, 1466308, 3800226, 51120890, 39853581, 569819525, 111231271, 1568773654, 1336836918

Basic calculations (n = 661796721)

Multiplication

n×y
n×2 1323593442
n×3 1985390163
n×4 2647186884
n×5 3308983605

Division

n÷y
n÷2 330898360.5
n÷3 220598907
n÷3 165449180.25
n÷5 132359344.2

Exponentiation

ny
n2 437974899926351841
n3 2.8985035265156E+26
n4 1.918220129655E+35
n5 1.2694717919619E+44

Nth Root

y√n
2√n 25725.410025887
3√n 871.4481193744
4√n 160.39142753242
5√n 58.095824845594

Divisors of 661796721

1, 9, 67, 137, 603, 1233, 8011, 9179, 72099, 82611, 536737, 1097507, 4830633, 9877563, 73532969, 661796721

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 -661796720
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 661796721 can be divided by 16 positive divisors. The sum of these divisors (counting 661796721) is 1, the average is 0.0625.

Base conversion 661796721

Base System Value
2 Binary 100111011100100011011101110001
3 Ternary 1201010021202102200
4 Quaternary 213130203131301
5 Quinary 2323404443341
6 Senary 145400333413
8 Octal 4734433561
10 Decimal 661796721
12 Duodecimal 165774269
16 Hexadecimal 27723771
20 Vigesimal a6g4bg1
36 Base36 ay0lm9

Cryptographic Hash Functions

md5 0c4e698d168847e82513a0aa3f8ddd25
sha1 4f6546bffecbac3bc04caf1cfc8c7aa40824ff22
sha256 8c040da007aba7d0be55f8aab986fc3a9e34b9ac013b0393e762afeebc05e57f
sha512 d14e221612ad9a49f61c123f183a2634a528f46883f305418c7b2af19ee626f73803179c1848b460f83dbebb5ab67932445cbd82ee6cf1ba85b06f5ca7a58512
ripemd-160 31d74d8dd1dba2e3cd8b28b6a108bde147b50b37

661796721 as geometric shapes

Circle

Radius = n
Diameter 1323593442
Circumference 4158191433.7268
Area 1.3759387280654E+18

Sphere

Radius = n
Volume 1.2141223180407E+27
Surface area 5.5037549122614E+18
Circumference 4158191433.7268

Square

Length = n
Perimeter 2647186884
Area 437974899926351841
Diagonal 935921898.37224

Cube

Length = n
Surface area 2627849399558111046
Volume 2.8985035265156E+26
Space diagonal 1146265545.0545

Equilateral Triangle

Length = n
Perimeter 1985390163
Area 1.8964869477808E+17
Altitude 573132772.52724

Triangular Pyramid

Length = n
Surface area 1.8964869477808E+17
Volume 3.4159191648205E+25
Height 311973966.12408