16274
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 24960
- Proper Divisor Sum (Aliquot Sum)
- 8686
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7956
- Möbius Function
- -1
- Radical
- 16274
- 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
- 159
- 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
- Number of binary necklaces of length n with no subsequence 00, excluding the necklace "0".at n=26A000358
- Number of ways to partition n elements into pie slices each with an odd number of elements.at n=26A032189
- Smallest m such that A098371(m) = n.at n=42A098373
- Numbers whose trajectory under the Esucarys map ends at the fixed point 247.at n=20A129133
- Expansion of Product_{k > 0} (1 + A005229(k)*x^k).at n=25A147880
- The indexing sequence for successively better golden semiprimes.at n=18A165569
- Years >= 1801 in which Christmas falls in Sukkot.at n=4A222419
- Number of (0, 1)-necklaces of length n without zigzags (see reference for precise definition).at n=27A263659
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 531", based on the 5-celled von Neumann neighborhood.at n=25A272752
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 521", based on the 5-celled von Neumann neighborhood.at n=13A288897
- Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=10A302429
- Number of n-bit binary necklaces (unmarked cyclic n-bit binary strings) containing no runs of length > 2.at n=26A316660
- Number of partitions of n with odd minimal and maximal parts.at n=39A325338
- Number of cyclic compositions of 2*n-1 into odd parts.at n=13A365858
- Number of self-dual cyclic n-color compositions.at n=26A365859
- Number of self-dual cyclic n-color compositions.at n=53A365859