1614
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 3240
- Proper Divisor Sum (Aliquot Sum)
- 1626
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 536
- Möbius Function
- -1
- Radical
- 1614
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 73
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- a(n) = Fibonacci(n) + n.at n=17A002062
- Coordination sequence T2 for Zeolite Code DDR.at n=25A008072
- Coordination sequence T10 for Zeolite Code EUO.at n=25A008096
- Coordination sequence T4 for Zeolite Code SGT.at n=25A008232
- Expansion of e.g.f.: cosh(tan(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+51/4!*x^4-180/5!*x^5...at n=6A012933
- Coordination sequence T5 for Zeolite Code TER.at n=27A016437
- Numbers k such that the continued fraction for sqrt(k) has period 24.at n=20A020363
- Number of strong elementary edge-subgraphs in Moebius ladder M_n.at n=7A020880
- Numbers k such that Fibonacci(k) == 8 (mod k).at n=15A023177
- a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2 ) and d(n) = (n-th number that is 1, 2, or 3, or is not a Lucas number).at n=13A023502
- Coordination sequence T4 for Zeolite Code IFR.at n=28A024985
- T(n,1) + T(n,2) + ... T(n,n), where T is the array in A026098.at n=13A026101
- a(n) = sum of the numbers between the two n's in A026350.at n=37A026353
- Sequence satisfies T^2(a)=a, where T is defined below.at n=37A027594
- Molien series for full 8 X 8 Siegel modular group H_3 of order 371589120.at n=29A027633
- Positions of records in A030757.at n=36A030762
- 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 12.at n=46A031510
- Numbers k such that 169*2^k+1 is prime.at n=12A032461
- Numbers k whose decimal representation, read as a base-13 value and divided by k, yields an integer.at n=11A032557
- Coordination sequence T2 for Zeolite Code SBT.at n=32A033613