11379
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 15176
- Proper Divisor Sum (Aliquot Sum)
- 3797
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7584
- Möbius Function
- 1
- Radical
- 11379
- Omega Function (Ω)
- 2
- 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
- 130
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- 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 35.at n=38A031533
- Positive numbers whose product of digits is 9 times their sum.at n=27A062041
- Number of states in minimal automaton that recognizes biquanimous numbers in base n.at n=13A065023
- Earliest positive integer having embedded exactly k distinct primes.at n=9A093301
- Records in A109734.at n=13A109739
- Maximal value of sum(p(i)p(i+1),i=1..n), where p(n+1)=p(1), as p ranges over all permutations of {1,2,...,n}.at n=31A110610
- Composite numbers, not ending with 0, sharing a 3-digit sequence with some of its prime factors.at n=6A131523
- Odd composite numbers such that the sum of any two terms, plus 1, is composite.at n=40A133763
- Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 11100-00100-00111 pattern in any orientation.at n=12A147250
- Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 11100-00100-00111 pattern in any orientation.at n=26A147252
- Number of distinct sums of subsets of the first n squares {1,4,9,...,n^2}.at n=31A208531
- Composite numbers n such that the distinct digits in n and the distinct digits in the proper divisors of n are the same.at n=6A237713
- Number of (n+2)X(1+2) 0..2 arrays with the (lower) medians of each row equal and of each column equal.at n=1A237795
- Number of (n+2)X(2+2) 0..2 arrays with the (lower) medians of each row equal and of each column equal.at n=0A237796
- T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with the (lower) medians of each row equal and of each column equal.at n=1A237797
- T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with the (lower) medians of each row equal and of each column equal.at n=2A237797
- Convolution of the generalized Catalan numbers A057977 with themselves.at n=14A239453
- Number of length 3+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=13A248540
- Numbers m, such that the smallest prime factor of 1+78557*2^m doesn't belong to the covering set {3, 5, 7, 13, 19, 37, 73}.at n=33A258095
- Numbers k such that the set of all the decimal digits of k is the same as the set of all the decimal digits of the proper divisors of k.at n=7A282755