Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

66561681 (number)

66561681 is an odd 8-digits composite number following 66561680 and preceding 66561682. In scientific notation, it is written as 6.6561681 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 40416000 positive integers (up to 66561681) that are relatively prime to 66561681.

Interesting facts

66561681 has 8 divisors, whose sum is 71236584
The reverse of 66561681 is 18616566
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	6.6561681 × 10^7
Engineering notation	6.6561681 × 10^6

Prime Factorization of 66561681

Prime Factorization 93 × 17 × 42101

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	66561681	Product of the distinct prime numbers

The prime factorization of 66561681 is 93 × 17 × 42101. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 2, 68, 21, 843, 578, 5873, 2732, 19223, 78023, 767040, 421792, 2284686, 7050384, 36079117, 81539496, 94323525, 411636000, 1686224330, 4611735528

Basic calculations (n = 66561681)

Multiplication

n×y

n×2	133123362
n×3	199685043
n×4	266246724
n×5	332808405

Division

n÷y

n÷2	33280840.5
n÷3	22187227
n÷3	16640420.25
n÷5	13312336.2

Exponentiation

n^y

n²	4430457377545761
n³	2.948986906483E+23
n⁴	1.962895257425E+31
n⁵	1.3065360796113E+39

Nth Root

^y√n

²√n	8158.5342433552
³√n	405.26717319999
⁴√n	90.324604861329
⁵√n	36.698207867258

Divisors of 66561681

1, 17, 93, 1581, 42101, 715717, 3915393, 66561681

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	-66561680	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 66561681 can be divided by 8 positive divisors. The sum of these divisors (counting 66561681) is 1, the average is 0.125.

Base conversion 66561681

Base	System	Value
2	Binary	11111101111010011010010001
3	Ternary	11122020200110110
4	Quaternary	3331322122101
5	Quinary	114014433211
6	Senary	10334351533
8	Octal	375723221
10	Decimal	66561681
12	Duodecimal	1a35b5a9
16	Hexadecimal	3f7a691
20	Vigesimal	10g0441
36	Base36	13mnbl

Cryptographic Hash Functions

md5	ce0185bfc15a9c59f925fa1690809f9d
sha1	213bf00463f53b83bc880fcd819d44198fbca088
sha256	c716cf91b184d9c176b7c172be2b3ba3f4709db0097e1c8476b0a163a9365b7d
sha512	a331ced62787dd26ed9aeb7b8ae1acc15ecf3956f2de0523816cc1139dbe6ece6db252703c8d086ea6dc064ad5804c901f3ce5a24b6e391178a33be034be6672
ripemd-160	a670628e74a533d7d517572c59e3d2c7a325cb71

66561681 as geometric shapes

Circle

Radius = n

Diameter	133123362
Circumference	418219376.08037
Area	1.391869234934E+16

Sphere

Radius = n

Volume	1.2352687467919E+24
Surface area	5.5674769397362E+16
Circumference	418219376.08037

Square

Length = n

Perimeter	266246724
Area	4430457377545761
Diagonal	94132432.004552

Cube

Length = n

Surface area	26582744265274566
Volume	2.948986906483E+23
Space diagonal	115288213.32919

Equilateral Triangle

Length = n

Perimeter	199685043
Area	1.9184443196694E+15
Altitude	57644106.664596

Triangular Pyramid

Length = n

Surface area	1.9184443196694E+15
Volume	3.4754143986741E+22
Height	31377477.334851