14
XIV
1110
The number 14 — factors and divisors
Deficient
14 = 2 × 7. It has 4 divisors, adding up to 24.
Its divisors, itself excluded, add up to less than the number.
Laid out as dots
It fits as 2 × 7. The more divisors, the closer to a square.
- Prime factors
- 2 × 7
- Divisors
- 1, 2, 7, 14
- Sum of divisors
- 24
- Sum without itself
- 10
- Coprime below it
- 6
- Digit sum
- 5
- Digital root
- 5
- Roman numeral
- XIV
- Binary
- 1110
- Octal
- 16
- Hexadecimal
- E
- Base 36
- E
- Bits
- 4 bits
- Collatz steps
- 17 steps · peaks at 52
- Prime before
- 13
- Prime after
- 17
The grid
Ten per row, twenty rows. The filled cells are primes — you can see the multiples of 2 and 5 drop out in columns.
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Numbers either side
How to read this
- The prime factors are what the number is made of. The count and sum of divisors both follow from them.
- Add the divisors, take the number away, and you get perfect, abundant or deficient.
- The length of the binary form is the bit count. 255 taking eight digits is what a byte is.
- Collatz: halve it if even, triple it and add one if odd. The count is how many moves reach 1.
Frequently asked questions
Q. Is 14 a prime number?
No. It breaks down into 2 × 7.
Q. What are the divisors of 14?
1, 2, 7, 14 — 4 divisors in all, adding up to 24.
Q. How is 14 written in binary?
1110, which is 4 bits. In hexadecimal it is E.
Q. How many Collatz steps does 14 take?
It reaches 1 in 17, peaking at 52 on the way.