134
CXXXIV
10000110
The number 134 — factors and divisors
Deficient
134 = 2 × 67. It has 4 divisors, adding up to 204.
Its divisors, itself excluded, add up to less than the number.
Laid out as dots
It fits as 2 × 67. The more divisors, the closer to a square.
- Prime factors
- 2 × 67
- Divisors
- 1, 2, 67, 134
- Sum of divisors
- 204
- Sum without itself
- 70
- Coprime below it
- 66
- Digit sum
- 8
- Digital root
- 8
- Roman numeral
- CXXXIV
- Binary
- 10000110
- Octal
- 206
- Hexadecimal
- 86
- Base 36
- 3Q
- Bits
- 8 bits
- Collatz steps
- 28 steps · peaks at 304
- Prime before
- 131
- Prime after
- 137
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 134 a prime number?
No. It breaks down into 2 × 67.
Q. What are the divisors of 134?
1, 2, 67, 134 — 4 divisors in all, adding up to 204.
Q. How is 134 written in binary?
10000110, which is 8 bits. In hexadecimal it is 86.
Q. How many Collatz steps does 134 take?
It reaches 1 in 28, peaking at 304 on the way.