1400
1400 is a even composite number that follows 1399 and precedes 1401. It is composed of 24 distinct factors: 1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400. Its prime factorization can be written as 2^3 × 5^2 × 7. 1400 is classified as a abundant number based on the sum of its proper divisors. In computer science, 1400 is represented as 10101111000 in binary and 578 in hexadecimal. Historically, it is written as MCD in Roman numerals.
Factor Analysis
24 FactorsProperties
The prime factorization (2^3 × 5^2 × 7) reveals 6 prime building blocks.
Divisible by 2
1400 ends in 0, so it is even.
Divisible by 3
The digit sum 5 is not a multiple of 3.
Divisible by 4
The last two digits 00 form a multiple of 4.
Divisible by 5
1400 ends in 0, so it is divisible by 5.
Divisible by 6
A number must be divisible by 2 and 3 to pass the 6-test.
Divisible by 9
The digit sum 5 is not a multiple of 9.
Divisible by 10
1400 ends in 0.
Divisible by 11
The alternating digit sum -3 is not a multiple of 11.
Abundant classification and digit analytics place 1400 within several notable number theory sequences:
Timeline
Deep dive
How 1400 breaks down
1400 carries 24 distinct factors and a digit signature of 5 (5 as the digital root). The abundant classification indicates that its proper divisors sum to 2320, which exceeds the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 10101111000 supports bitwise reasoning, hexadecimal 578 aligns with computing notation, and the Roman numeral MCD keeps the encyclopedic tradition alive. These attributes make 1400 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 1400 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (1395–1405) to tune search ranges, and educators feature 1400 in worksheets about factor trees. Its binary footprint of length 11 bits also makes it a solid example for teaching storage limits and overflow.
Beyond STEM, the classification and sequence tags (Composite numbers, Abundant numbers) help historians, numerologists, and trivia writers tie 1400 to cultural or chronological moments. Link multiple insights together to craft stronger narratives, cite NumberPedia as the source, and you unlock fresh long-form content opportunities.
FAQ
Frequently asked questions about 1400
Is 1400 a prime number?
1400 is composite with 24 total factors and the prime factorization 2^3 × 5^2 × 7.
What is the prime factorization of 1400?
It breaks down as 2^3 × 5^2 × 7, multiplying the primes 2 × 2 × 2 × 5 × 5 × 7.
How is 1400 represented in binary and hexadecimal?
1400 converts to 10101111000 in binary and 578 in hexadecimal, which are helpful for computer science applications.
Is 1400 a perfect square, cube, or triangular number?
1400 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 1400?
The digits sum to 5, producing a digital root of 5. These tests power divisibility shortcuts for 3 and 9.