11258
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 18228
- Proper Divisor Sum (Aliquot Sum)
- 6970
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5184
- Möbius Function
- -1
- Radical
- 11258
- 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
- 174
- 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
- Denominators of continued fraction convergents to sqrt(301).at n=10A041567
- Numbers whose base-4 representation contains exactly four 2's and three 3's.at n=9A045156
- a(1) = 1+2-3 = 0, a(2) = 4+5+6-7 = 8, a(3) = 8+9+10+11-12 = 26, a(4) = 13+14+15+16+17-18 = 57, ...at n=26A111694
- Number of permutations of length n which avoid the patterns 3214, 4123, 4132.at n=8A116738
- Number of parity perfect graphs on n nodes.at n=8A123443
- Floor(exp(n)/n^3).at n=17A132406
- Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 1,3,2,2,0,0,0 for x=0,1,2,3,4,5,6.at n=5A207162
- Number of n-length words on {1,2,3} such that the maximal blocks (runs) of 1's have odd length, the maximal blocks of 2's have even length and the maximal blocks of 3's have odd length.at n=13A242510
- Positions of 2's in A264977; positions of 3's in A277330.at n=44A277712
- Expansion of Product_{k>=1} 1/(1 - x^k)^(p(k)-1), where p(k) = number of partitions of k (A000041).at n=17A304966
- Number of subsets of {1..n} containing n whose sum is greater than or equal to the sum of their complement.at n=14A326174
- Number of maximal independent sets in the 4 X n king graph.at n=9A332349
- Array read by antidiagonals: T(n,k) is the number of rooted unlabeled k-gonal cacti having n polygons.at n=73A332648
- Numbers k such that there exists i >= 1 such that k divides 3^3^i - 1.at n=17A367265