Math question: How many times does the number 9 appear in all the positive integers less than or equal to 3609?

To find the answer, group the integers into sets of 10. Within each set, the digit 9 appears once in the units place. There are 360 complete sets, contributing 360 occurrences of the digit 9. However, within the last set (3610, 3611, ..., 3619), the digit 9 appears only once (in 3619) instead of 10 times. Thus, in total, the digit 9 appears 360 + 1 = 361 times in all the numbers less than or equal to 3609.

Question: What is the maximum number of unique three-digit numbers that can be formed using all the digits in 3609?

To find the maximum number of unique three-digit numbers, we need to consider the positions of the digits in 3609. Since the number has four digits, the thousands place can be filled with any of the four digits (3, 6, 0, or 9). After choosing the thousands place digit, we are left with three digits for the remaining three places, which can be arranged in 3! = 6 ways. Therefore, the maximum number of unique three-digit numbers that can be formed is 4 × 6 = 24.

Math question: If the number 3609 is divided by 9 and then multiplied by 4, what is the result?

To find the result, we first divide 3609 by 9, which gives us 401. After that, we multiply 401 by 4, resulting in 1604. Therefore, when 3609 is divided by 9 and then multiplied by 4, the answer is 1604.

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

3609 (number)

3609 is an odd 4-digits composite number following 3608 and preceding 3610. In scientific notation, it is written as 3.609 × 10^3. The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors. There are 2400 positive integers (up to 3609) that are relatively prime to 3609.

Interesting facts

3609 has 4 divisors, whose sum is 4020
The reverse of 3609 is 9063
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 18
Digital Root 9

Name

Name	three thousand six hundred nine

Notation

Scientific notation	3.609 × 10^3
Engineering notation	3.609 × 10^3

Prime Factorization of 3609

Prime Factorization 9 × 401

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	3609	Product of the distinct prime numbers

The prime factorization of 3609 is 9 × 401. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 2, 81, 10, 661, 914, 6321, 3878, 63120, 28086, 799144, 579744, 1639420, 86102, 14523024, 28845615, 293078082, 76492130, 4932161183, 1120909645

Basic calculations (n = 3609)

Multiplication

n×y

n×2	7218
n×3	10827
n×4	14436
n×5	18045

Division

n÷y

n÷2	1804.5
n÷3	1203
n÷3	902.25
n÷5	721.8

Exponentiation

n^y

n²	13024881
n³	47006795529
n⁴	169647525064161
n⁵	612257917956557049

Nth Root

^y√n

²√n	60.074953183502
³√n	15.338949843315
⁴√n	7.7508033895527
⁵√n	5.1460899892439

Divisors of 3609

1, 9, 401, 3609

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-3608	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 3609 can be divided by 4 positive divisors. The sum of these divisors (counting 3609) is 1, the average is 0.25.

Base conversion 3609

Base	System	Value
2	Binary	111000011001
3	Ternary	11221200
4	Quaternary	320121
5	Quinary	103414
6	Senary	24413
8	Octal	7031
10	Decimal	3609
12	Duodecimal	2109
16	Hexadecimal	e19
20	Vigesimal	909
36	Base36	2s9

Cryptographic Hash Functions

md5	649a066d415bdda4ce2a7088292645e0
sha1	8972c2f11aad155a864e7d5f8dcf481c418d217d
sha256	66eba0f8578c53acb353d399405165153f066adaf9c6567bdd25b31fceb8a83e
sha512	9b2575fa8225f7a96e130be26b736f830902703d7a8ba8f2b96ea906e413a124307aab809cc7b70887560d8abbfbf7ce4f4ded049c31588001b430455ff7ba11
ripemd-160	38956b3139000d5479257c86d9481d1604c13021

3609 as geometric shapes

Circle

Radius = n

Diameter	7218
Circumference	22676.015773611
Area	40918870.463481

Sphere

Radius = n

Volume	196901604670.27
Surface area	163675481.85393
Circumference	22676.015773611

Square

Length = n

Perimeter	14436
Area	13024881
Diagonal	5103.8967466045

Cube

Length = n

Surface area	78149286
Volume	47006795529
Space diagonal	6250.9713645161

Equilateral Triangle

Length = n

Perimeter	10827
Area	5639938.9136346
Altitude	3125.485682258

Triangular Pyramid

Length = n

Surface area	5639938.9136346
Volume	5539803980.0676
Height	1701.2989155348