61665981 (number)

61665981 is an odd 8-digits composite number following 61665980 and preceding 61665982. In scientific notation, it is written as 6.1665981 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 37857600 positive integers (up to 61665981) that are relatively prime to 61665981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.1665981 × 10^7
Engineering notation 6.1665981 × 10^6

Prime Factorization of 61665981

Prime Factorization 3 × 13 × 479 × 3301

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 61665981
Product of the distinct prime numbers

The prime factorization of 61665981 is 3 × 13 × 479 × 3301. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 40, 69, 30, 170, 4818, 7780, 58838, 32664, 378753, 612147, 4209078, 9492914, 88086698, 61170163, 339603401, 323290919, 9601730370, 9477520962

Basic calculations (n = 61665981)

Multiplication

n×y
n×2 123331962
n×3 184997943
n×4 246663924
n×5 308329905

Division

n÷y
n÷2 30832990.5
n÷3 20555327
n÷3 15416495.25
n÷5 12333196.2

Exponentiation

ny
n2 3802693212692361
n3 2.3449680740272E+23
n4 1.4460475669857E+31
n5 8.9171941790834E+38

Nth Root

y√n
2√n 7852.7690020782
3√n 395.07712215215
4√n 88.615850738331
5√n 36.141745962489

Divisors of 61665981

1, 3, 13, 39, 479, 1437, 3301, 6227, 9903, 18681, 42913, 128739, 1581179, 4743537, 20555327, 61665981

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 -61665980
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 61665981 can be divided by 16 positive divisors. The sum of these divisors (counting 61665981) is 1, the average is 0.0625.

Base conversion 61665981

Base System Value
2 Binary 11101011001111001010111101
3 Ternary 11022000221211020
4 Quaternary 3223033022331
5 Quinary 111241302411
6 Senary 10041414353
8 Octal 353171275
10 Decimal 61665981
12 Duodecimal 1879a3b9
16 Hexadecimal 3acf2bd
20 Vigesimal j584j1
36 Base36 10pprx

Cryptographic Hash Functions

md5 22fc445ff782e0af747dedc9decdc94b
sha1 345eeca472787d068c320134a29a90c04b4a431e
sha256 adf2de8596c407e7ac0a88a11902f50d4a6fe3fae62ce231b5bae5f47ac50b4f
sha512 b3272e5bfd933c5ca72459e56aa154213c7fd570bc180b718ee4d8e3442665184bb26c2d7b1ae8c691fbfcbdc5b3c2cfbec049a1dbd6bdc4390108bb20164d16
ripemd-160 8cd9c8014ba54c1413275f2801fbeeabdc20257e

61665981 as geometric shapes

Circle

Radius = n
Diameter 123331962
Circumference 387458785.77202
Area 1.194651306085E+16

Sphere

Radius = n
Volume 9.8225792990218E+23
Surface area 4.77860522434E+16
Circumference 387458785.77202

Square

Length = n
Perimeter 246663924
Area 3802693212692361
Diagonal 87208866.667242

Cube

Length = n
Surface area 22816159276154166
Volume 2.3449680740272E+23
Space diagonal 106808612.19058

Equilateral Triangle

Length = n
Perimeter 184997943
Area 1.6466144624951E+15
Altitude 53404306.095289

Triangular Pyramid

Length = n
Surface area 1.6466144624951E+15
Volume 2.7635713780176E+22
Height 29069622.222414