Cody

# Problems

1 – 45 of 45
 Problem Title Likes Solvers Difficulty

#### Problem 45192. check whether a number is a pentatope number

Created by: Asif Newaz

Tags pentatope

1

30

#### Problem 1012. Determine if input is a perfect number

Created by: Binbin Qi

1

158

#### Problem 45191. generate nth pentatope number

Created by: Asif Newaz

2

35

#### Problem 2061. Narcissistic number ?

Created by: Jean-Marie Sainthillier

2

260

#### Problem 44748. Amicable numbers

Created by: cdeliu

1

41

3

243

#### Problem 45223. find nth even fibonacci number

Created by: Asif Newaz

1

42

#### Problem 1008. Determine if input is a Narcissistic number

Created by: Binbin Qi

Tags mod floor

2

137

Created by: Ted

2

146

#### Problem 45253. Pell numbers

Created by: Asif Newaz

2

39

#### Problem 45229. Bell Triangle

Created by: Asif Newaz

1

28

#### Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

3

397

#### Problem 44836. Iccanobif numbers 1

Created by: James

3

47

#### Problem 2690. Armstrong Number

Created by: VIVEK RUHELA

7

264

#### Problem 45250. Be happy

Created by: Asif Newaz

Tags number, happy

2

19

#### Problem 156. Parasitic numbers

Created by: the cyclist

Tags parasitic

4

256

#### Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

11

687

#### Problem 2733. Evil Number

Created by: Jan Orwat

3

217

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

Created by: Jan Orwat

2

130

#### Problem 1298. P-smooth numbers

Created by: Richard Zapor

Tags primes, find, mod

1

62

Created by: goc3

9

602

#### Problem 45194. Cantor counting

Created by: Asif Newaz

2

20

#### Problem 166. Kaprekar numbers

Created by: the cyclist

Tags kaprekar

4

244

#### Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

2

337

#### Problem 1804. Fangs of a vampire number

Created by: Andrew Newell

4

71

#### Problem 165. Woodall number

Created by: the cyclist

1

140

#### Problem 525. Mersenne Primes

Created by: Drew Weymouth

4

379

#### Problem 1082. Lychrel Number Test (Inspired by Project Euler Problem 55)

Created by: @bmtran (Bryant Tran)

1

64

Created by: Tim

1

144

#### Problem 45249. Frugal number

Created by: Asif Newaz

2

28

#### Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

6

122

#### Problem 1190. Golomb's self-describing sequence (based on Euler 341)

Created by: James

3

118

#### Problem 74. Balanced number

Created by: Cody Team

Tags matlab

18

2107

#### Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

5

518

#### Problem 1742. Generate a Parasitic Number

Created by: James

4

76

#### Problem 45251. Last non-zero digit

Created by: Asif Newaz

1

26

#### Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

4

354

#### Problem 45272. Pseudo-vampire number

Created by: Asif Newaz

2

18

Created by: G K

Tags math

2

54

#### Problem 1825. Find all vampire fangs

Created by: Andrew Newell

2

50

#### Problem 81. Mandelbrot Numbers

Created by: Cody Team

8

854

#### Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

3

474

#### Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

7

254

#### Problem 1826. Find vampire numbers

Created by: Andrew Newell

9

249

#### Problem 45274. Fangs of pseudo-vampire number

Created by: Asif Newaz

1

15

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