Math question: What is the sum of the digits in the number 1223?

To find the sum of the digits in 1223, we simply add each digit: 1 + 2 + 2 + 3 = 8.

Math question: What is the sum of all the odd numbers between 1 and 1223?

We can find the sum of odd numbers using the formula: S = (n/2)(2a + (n-1)d), where S is the sum, n is the number of terms, a is the first term, and d is the common difference. In this case, the first odd number is 1, and the last odd number less than or equal to 1223 is 1223. Thus, a = 1 and d = 2. Substituting these values into the formula, we have: S = (n/2)(2(1) + (n-1)(2)) Simplifying further, S = (n/2)(2 + 2n - 2) S = (n/2)(2n) S = n^2 Now, to find n, we can use the formula for the n-th odd number: n = (L - F)/d + 1, where L is the last odd number and F is the first odd number. Substituting the known values, we have: n = (1223 - 1)/2 + 1 n = 1223/2 + 1 n = 612 + 1 n = 613 Therefore, the sum of all the odd numbers between 1 and 1223 is 613^2 = 375,769.

Question: What is the closest prime number to 1223 that can be expressed as the sum of two perfect squares?

To find the prime number closest to 1223, we need to check the sum of squares beginning from the square root of 1223 (approximately 34.96). By trying out combinations, we find that 1223 = 23^2 + 6^2. Now, we check for the closest prime numbers by decrementing and incrementing our perfect square values. As 23-1 = 22 and 23+1=24 are composite, we have to keep decrementing. By checking 22^2 + 6^2, we get 520, which is composite. Trying 21^2 + 6^2 gives 477, which is also composite. Continuing this search, we find that 20^2 + 6^2 = 436, which is prime. Therefore, the closest prime number to 1223 that can be expressed as the sum of two perfect squares is 436.

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

1223 (number)

1223 is an odd 4-digits prime number following 1222 and preceding 1224. In scientific notation, it is written as 1.223 × 10^3. The sum of its digits is 8. It has a total of 1 prime factors and 2 positive divisors. There are 1222 positive integers (up to 1223) that are relatively prime to 1223.

Interesting facts

1223 has 2 divisors, whose sum is 1224
The reverse of 1223 is 3221
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 4
Sum of Digits 8
Digital Root 8

Name

Name	one thousand two hundred twenty-three

Notation

Scientific notation	1.223 × 10^3
Engineering notation	1.223 × 10^3

Prime Factorization of 1223

Prime Factorization 1223

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	1223	Product of the distinct prime numbers

The prime factorization of 1223 is 1223. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 8, 53, 44, 800, 829, 2606, 4663, 5624, 30788, 474288, 226679, 3710646, 7516556, 22394207, 23535923, 583871970, 419666915, 2733395954, 8894938084

Basic calculations (n = 1223)

Multiplication

n×y

n×2	2446
n×3	3669
n×4	4892
n×5	6115

Division

n÷y

n÷2	611.5
n÷3	407.66666666667
n÷3	305.75
n÷5	244.6

Exponentiation

n^y

n²	1495729
n³	1829276567
n⁴	2237205241441
n⁵	2736102010282343

Nth Root

^y√n

²√n	34.971416900091
³√n	10.694048572642
⁴√n	5.913663576844
⁵√n	4.1446254687123

Divisors of 1223

1, 1223

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	1224	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	612	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	34.985711369072	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9983660130719	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1223 can be divided by 2 positive divisors. The sum of these divisors (counting 1223) is 1224, the average is 612.

Base conversion 1223

Base	System	Value
2	Binary	10011000111
3	Ternary	1200022
4	Quaternary	103013
5	Quinary	14343
6	Senary	5355
8	Octal	2307
10	Decimal	1223
12	Duodecimal	85b
16	Hexadecimal	4c7
20	Vigesimal	313
36	Base36	xz

Cryptographic Hash Functions

md5	43cca4b3de2097b9558efefd0ecc3588
sha1	297beb01dd21c5a2aad009da6abb91d4bc0fdc6d
sha256	fa3cfb3f1bb823aa9501f88f1f95f732ee6fef2c3a48be7f1d38037b216a549f
sha512	d57ac882c44a45f53eecdb570427218e9edae12268d0c3abc879a787aab921a2e0b7c713fbbe3f2e9d144a40c352fdc8507284ae0d9d3458efa3540c27101235
ripemd-160	09bbcc1114f49066a3bab684d10d65623e457964

1223 as geometric shapes

Circle

Radius = n

Diameter	2446
Circumference	7684.3356306806
Area	4698971.2381612

Sphere

Radius = n

Volume	7662455765.6949
Surface area	18795884.952645
Circumference	7684.3356306806

Square

Length = n

Perimeter	4892
Area	1495729
Diagonal	1729.5831867823

Cube

Length = n

Surface area	8974374
Volume	1829276567
Space diagonal	2118.2981376567

Equilateral Triangle

Length = n

Perimeter	3669
Area	647669.65558855
Altitude	1059.1490688284

Triangular Pyramid

Length = n

Surface area	647669.65558855
Volume	215582310.86522
Height	576.52772892743