Cody

Problems

1 – 19 of 19
Problem Title
Likes
Solvers
Difficulty

Problem 139. Determine if a Given Number is a Triangle Number

Created by: @bmtran (Bryant Tran)

Tags triangle numbers

7

326

Problem 1997. Compute Fibonacci Number

Created by: Alex

Tags numbers, fibonacci

5

322

Problem 2819. Find the 9's Complement

Created by: Pritesh Shah

Tags matlab

4

259

Problem 2690. Armstrong Number

Created by: VIVEK RUHELA

Tags arithmetic, basic matlab

7

255

Problem 156. Parasitic numbers

Created by: the cyclist

Tags parasitic

4

252

Problem 2061. Narcissistic number ?

Created by: Jean-Marie Sainthillier

Tags narcissistic

2

252

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

4

245

Problem 166. Kaprekar numbers

Created by: the cyclist

Tags kaprekar

4

238

Problem 2733. Evil Number

Created by: Jan Orwat

Tags easy, number theory, oeis

3

207

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

9

148

Problem 2056. Is this number Munchhausen Narcissistic?

Created by: Ted

Tags math, narcissistic number, munchhausen

2

142

Problem 2734. N-th Odious

Created by: Jan Orwat

Tags number theory, oeis, pop series

2

140

Problem 2248. Bell Number calculator

Created by: robin

Tags sets, partition

2

134

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

9

133

Problem 2593. Polite numbers. N-th polite number.

Created by: Jan Orwat

Tags number theory, a138591

2

128

Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

Tags number theory, oeis

6

120

Problem 1472. nth Rational Number

Created by: G K

Tags math

2

118

Problem 1771. Polygonal numbers

Created by: Jan Orwat

Tags number theory, sequence, polygonal

5

104

Problem 1742. Generate a Parasitic Number

Created by: James

Tags parasitic, cyclic

4

75
1 – 19 of 19