1348
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 2366
- Proper Divisor Sum (Aliquot Sum)
- 1018
- 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
- 672
- Möbius Function
- 0
- Radical
- 674
- Omega Function (Ω)
- 3
- 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
- 114
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- From least significant term in expansion of E( tr (X'*X)^n ), X rectangular and Gaussian. Also number of types of sequential n-swap moves for traveling salesman problem.at n=5A001171
- Number of stacks, or arrangements of n pennies in contiguous rows, each touching 2 in row below.at n=22A001524
- Bond percolation series for square lattice.at n=12A006727
- Number of strict (-1)st-order maximal independent sets in cycle graph.at n=14A007390
- Coordination sequence T1 for Zeolite Code LTA and RHO.at n=29A008137
- Coordination sequence T4 for Zeolite Code iRON.at n=26A009884
- Coordination sequence T4 for Zeolite Code VET.at n=22A009905
- a(n) = floor( n*(n-1)*(n-2)/20 ).at n=31A011902
- a(n) = b(n) - c(n) where b(n) is the n-th Lucas number greater than 3 and c(n) is the n-th number not in sequence b( ).at n=12A014252
- Phi(n) + 6 | sigma(n + 6).at n=49A015785
- Numbers k such that phi(k) | sigma(k + 5).at n=46A015843
- Numbers k such that the continued fraction for sqrt(k) has period 42.at n=5A020381
- Least k such that A020951(k) = n.at n=38A020953
- Place where n-th 1 occurs in A023122.at n=46A022784
- Convolution of natural numbers >= 2 and Fibonacci numbers.at n=11A023548
- Position of 2*n^2 in A000404 (sums of 2 nonzero squares).at n=48A024517
- Positions of nonprimes among the powers of primes (A000961).at n=53A024621
- a(n) is the position of square of n-th prime among the powers of primes (A000961).at n=26A024624
- Positions of squares among the powers of primes (A000961).at n=37A024626
- a(n) = position of the n-th n in A026409.at n=33A026412