11116
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 22288
- Proper Divisor Sum (Aliquot Sum)
- 11172
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 4752
- Möbius Function
- 0
- Radical
- 5558
- Omega Function (Ω)
- 4
- 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
- 161
- 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
- Numbers k such that the continued fraction for sqrt(k) has period 100.at n=23A020439
- Numbers whose maximal base-10 run length is 4.at n=15A033285
- Numerators of continued fraction convergents to sqrt(557).at n=7A042066
- Numbers having four 1's in base 10.at n=9A043496
- Centered 15-gonal numbers: a(n) = (15*n^2 - 15*n + 2)/2.at n=38A069128
- Number of connected 7-colorable (i.e., chromatic number <= 7) simple graphs on n nodes.at n=7A076326
- Partial sums of n + Fibonacci(n+1).at n=18A081662
- Lunar fourth powers: n*n*n*n, where * is lunar multiplication.at n=16A087051
- Numbers n for which there are exactly six k such that n = k + (product of nonzero digits of k).at n=5A096927
- Numbers k such that 5*10^k + 2*R_k + 7 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=13A103011
- 3-Smith numbers.at n=38A104391
- Keep only the first digit of each integer and concatenate them. The result is the concatenation of all integers of the sequence.at n=23A106000
- (Digit 1 repeated n times) + n.at n=4A110369
- Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k peaks of height >1 (n >= 1; 0 <= k <= n-1).at n=51A128747
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 0), (-1, 1, 1), (1, 0, 0), (1, 1, -1)}.at n=9A148645
- Lexicographically earliest increasing sequence which lists the positions of the zero digits in the sequence.at n=10A167519
- (10^n+44)/9 for n>0.at n=4A173737
- Numbers whose product of digits is 6.at n=30A199988
- Composite numbers whose product of digits is 6.at n=20A201055
- Numbers k such that distances from k to three nearest squares are three triangular numbers.at n=18A232501