Math Question: What is the square root of 690 rounded to the nearest whole number and multiplied by the factorial of 5?

The square root of 690 is approximately 26.27. Rounding it to the nearest whole number gives 26. Multiplying 26 by the factorial of 5 (which is 5x4x3x2x1 = 120) yields 3120.

Math question: What is the sum of the prime factors of the largest prime factor of 690?

To find the prime factors of 690, we divide it by prime numbers starting from 2: 690 ÷ 2 = 345, 345 ÷ 3 = 115, 115 ÷ 5 = 23. Hence, the prime factors are 2, 3, 5, and 23. The largest prime factor is 23, and the sum of its prime factors (2 + 3 + 5 + 23) equals 33. So, the answer is 33.

What is the sum of the digits of a three-digit number if it is divisible by 3 and 5, but not divisible by 2?

Since the number is divisible by 3 and 5, the sum of its digits must also be divisible by 3 and 5. The sum of the digits of 690 is 6 + 9 + 0 = 15, which is divisible by both 3 and 5.

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

690 (number)

690 is an even 3-digits composite number following 689 and preceding 691. In scientific notation, it is written as 6.90 × 10^2. The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors. There are 176 positive integers (up to 690) that are relatively prime to 690.

Interesting facts

690 has 8 divisors, whose sum is 1152
The reverse of 690 is 096
Previous prime number is 15

Basic properties

Is Prime? no
Number parity even
Number length 3
Sum of Digits 15
Digital Root 6

Name

Name	six hundred ninety

Notation

Scientific notation	6.90 × 10^2
Engineering notation	6.90 × 10^0

Prime Factorization of 690

Prime Factorization 2 × 15 × 23

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	690	Product of the distinct prime numbers

The prime factorization of 690 is 2 × 15 × 23. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 1, 20, 11, 730, 329, 4178, 5097, 34029, 72299, 627774, 115648, 8542232, 1612788, 62622891, 46932020, 386386124, 490075177, 1515976602, 2074888120

Basic calculations (n = 690)

Multiplication

n×y

n×2	1380
n×3	2070
n×4	2760
n×5	3450

Division

n÷y

n÷2	345
n÷3	230
n÷3	172.5
n÷5	138

Exponentiation

n^y

n²	476100
n³	328509000
n⁴	226671210000
n⁵	156403134900000

Nth Root

^y√n

²√n	26.267851073127
³√n	8.8365559224036
⁴√n	5.1252171732647
⁵√n	3.696322178612

Divisors of 690

1, 2, 15, 23, 30, 46, 345, 690

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	-689	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 690 can be divided by 8 positive divisors. The sum of these divisors (counting 690) is 1, the average is 0.125.

Base conversion 690

Base	System	Value
2	Binary	1010110010
3	Ternary	221120
4	Quaternary	22302
5	Quinary	10230
6	Senary	3110
8	Octal	1262
10	Decimal	690
12	Duodecimal	496
16	Hexadecimal	2b2
20	Vigesimal	1ea
36	Base36	j6

Cryptographic Hash Functions

md5	c06d06da9666a219db15cf575aff2824
sha1	d9fce17200317431b1b43b27508224cf0294759a
sha256	f6103ca1e01bd200a9258a366b7e8c22a542e771bf11a0679967a5bb47ef3688
sha512	52238ff18f0dae7d8442ff9b1376ac41cae343a80310673aa035b28a31c9af45a8b6432b09362536fedd1fa601c21d55d38a8e3de7d5ba244e8ff548d4a66967
ripemd-160	87d935a557f5c6bd89c93db1b91b1cf69b15e720

690 as geometric shapes

Circle

Radius = n

Diameter	1380
Circumference	4335.3978619539
Area	1495712.2623741

Sphere

Radius = n

Volume	1376055281.3842
Surface area	5982849.0494964
Circumference	4335.3978619539

Square

Length = n

Perimeter	2760
Area	476100
Diagonal	975.80735803744

Cube

Length = n

Surface area	2856600
Volume	328509000
Space diagonal	1195.1150572225

Equilateral Triangle

Length = n

Perimeter	2070
Area	206157.34737089
Altitude	597.55752861126

Triangular Pyramid

Length = n

Surface area	206157.34737089
Volume	38715156.930135
Height	325.26911934581