2434
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3654
- Proper Divisor Sum (Aliquot Sum)
- 1220
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1216
- Möbius Function
- 1
- Radical
- 2434
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 133
- Smith Number
- yes
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Number of ways to pair up {1^2, 2^2, ..., (2n)^2 } so sum of each pair is prime.at n=9A000348
- Spiral sieve using Fibonacci numbers.at n=16A005620
- Numbers n such that n^32 + 1 is prime.at n=45A006315
- Left diagonal of partition triangle A047812.at n=24A007042
- Coordination sequence T4 for Zeolite Code LTN.at n=34A008143
- Coordination sequence T1 for Zeolite Code RSN.at n=32A009885
- Number of partitions of n into distinct parts, none being 6.at n=50A015753
- Coordination sequence T2 for Zeolite Code CZP.at n=32A019457
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 48.at n=11A031546
- a(n) = floor(E_(n+1)/E_(n)) where E_n is n-th Euler number (see A028296 and A000364).at n=37A034971
- Numbers n such that digit sum of n equals digit sum of 'juxtaposition' and 'sum' of its prime factors (counted with multiplicity).at n=46A036921
- Digit sum of 'even' number equals digit sum of 'sum' and 'juxtaposition' of its prime factors (counted with multiplicity).at n=26A036926
- Number of odd nonprimes < (2n+1)^2.at n=40A037040
- Trajectory of 3 under map n->15n+1 if n odd, n->n/2 if n even.at n=10A037105
- Sums of 4 distinct powers of 3.at n=45A038466
- Numbers n such that string 0,2 occurs in the base 8 representation of n but not of n-1.at n=41A044189
- Numbers n such that string 0,4 occurs in the base 9 representation of n but not of n-1.at n=32A044255
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n-1.at n=27A044366
- Numbers n such that string 0,4 occurs in the base 9 representation of n but not of n+1.at n=32A044636
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n+1.at n=27A044747