kth smallest number using digits of a given number

149

31.55 
Combinatorial  Numbers 
lock


Express N as sum of 4 prime numbers

164

26.83 
Numbers  Prime Number 
lock


Series with largest GCD and sum equals to N

217

33.2 
Mathematical  Numbers 
lock


Numbers having two adjacent set bits

294

45.9 
Numbers 
lock


Count the numbers satisfying (m + sum(m) + sum(sum(m))) equals to N

419

24.61 
Mathematical  Numbers 
lock


Number of compositions of a natural number

426

28.62 
Mathematical  Numbers 
lock


Make the hit in power game !

480

43.97 
Mathematical  Numbers 
lock


Lucky number and a sum

514

18.25 
Numbers 
lock


The Mighty Divisible Number

518

14.08 
Division  Mathematical  numbertheory  Numbers 
lock


Sum of GCDs

519

4.04 
Numbers 
lock


Biggest integer having maximum digit sum

529

10.39 
Mathematical  Numbers 
lock


Product of factors of number

531

24.45 
Mathematical  Numbers 
lock


Cosmic Number

536

27.26 
Mathematical  Numbers  Strings 
lock


Mansi and her series

552

28.14 
Numbers  Prime Number  series 
lock


Smallest number with sum of digits as N and divisible by 10^N

559

57.99 
Greedy  Numbers 
lock


Next higher palindromic number using the same set of digits

588

16.06 
Numbers  palindrome  Strings 
lock


Yes XOR No

676

20.1 
Mathematical  numbertheory  Numbers 
lock


Smallest K digit number divisible by X

733

36.59 
Mathematical  Numbers 
lock


Different ways to Spell a Number

756

31.22 
Combinatorial  Numbers 
lock


Square Numbers

790

3.84 
Mathematical  Numbers 
lock


Change Bits

815

55.7 
Bit Magic  Numbers 
lock


Count Numbers in Range

891

26.59 
Mathematical  Numbers  sieve 
lock


Anshuman's Favourite Number

926

67.42 
Mathematical  Numbers 
lock


The Number System

932

38.32 
Numbers 
lock


Next higher number in one swap

1003

17.56 
Numbers  Strings 
lock


Prime factorization and geek number

1025

20.3 
Numbers  Prime Number 
lock


Check whether two numbers differ at one bit position only

1048

28.82 
Numbers  Operators 
lock


Longest common substring value of two numbers

1210

16.49 
Numbers  Strings 
lock

Citrix 
Palindromic Series

1213

35.18 
alphabets  Arrays  Numbers  palindrome  Strings 
lock


Three distinct factors

1223

12.48 
Mathematical  Numbers  Prime Number 
lock


Digit multiplier

1374

27.2 
Mathematical  Numbers 
lock

Amazon  FactSet 
Previous number in one swap

1409

10.8 
Numbers  Strings 
lock


Squares Difference

1703

35.91 
Numbers  series 
lock


Numbers with 0 as a digit

1707

34.97 
Numbers 
lock

Jabong 
The Inverting Factor

1707

45.74 
Arrays  Numbers  Reverse 
lock


Numbers with one absolute difference

1901

18.29 
Numbers  Strings 
lock

Jabong 
Are you "Perfect"

1932

45.69 
Mathematical  Numbers 
lock


Product Sum

2238

18.3 
Numbers 
lock


Middle of Three

2392

44.15 
Numbers 
lock


Maximize The Array

2405

35.22 
Arrays  Mathematical  Numbers 
lock

Microsoft 
Crack the series

2428

18.93 
Numbers  series 
lock

Cognizant 
Power of Pow  Odd Numbers

2572

50.87 
Mathematical  Numbers 
lock


Power of Pow  Even Number

3199

33.57 
Mathematical  Numbers 
lock


Find the Number which contain the digit d

3919

18.58 
Mathematical  Numbers  Strings 
lock


Sum of primes

4462

32.32 
Numbers  Prime Number 
lock

Zoho 
How Many X's?

4699

62.36 
Modular Arithmetic  Numbers 
lock

Amazon 
Carry counter

5298

25.91 
Numbers 
lock

Microsoft 
Primes sum

5677

12.94 
Numbers  Prime Number  sieve 
lock

Zoho 