Numbers·184
184
CLXXXIV
10111000

The number 184 — factors and divisors

Deficient

184 = 2³ × 23. It has 8 divisors, adding up to 360.

Its divisors, itself excluded, add up to less than the number.

Laid out as dots

It fits as 8 × 23. The more divisors, the closer to a square.

Prime factors
2³ × 23
Divisors
1, 2, 4, 8, 23, 46, 92, 184
Sum of divisors
360
Sum without itself
176
Coprime below it
88
Digit sum
13
Digital root
4
Roman numeral
CLXXXIV
Binary
10111000
Octal
270
Hexadecimal
B8
Base 36
54
Bits
8 bits
Collatz steps
18 steps · peaks at 184
Prime before
181
Prime after
191

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.

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 184 a prime number?

No. It breaks down into 2³ × 23.

Q. What are the divisors of 184?

1, 2, 4, 8, 23, 46, 92, 184 — 8 divisors in all, adding up to 360.

Q. How is 184 written in binary?

10111000, which is 8 bits. In hexadecimal it is B8.

Q. How many Collatz steps does 184 take?

It reaches 1 in 18, peaking at 184 on the way.