11412
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 9
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 18
- Divisor Sum
- 28938
- Proper Divisor Sum (Aliquot Sum)
- 17526
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3792
- Möbius Function
- 0
- Radical
- 1902
- Omega Function (Ω)
- 5
- 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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 29
- 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
- Number of partitions of n with nonnegative rank.at n=36A064174
- Column 2 of triangle A091602.at n=44A091605
- Expansion of g.f. Product((1+x^i)/(1-x^i),i=1..n-1)/(1-x^n), with n = 7.at n=25A091778
- Twice 11-gonal numbers: a(n) = n*(9*n-7).at n=36A152995
- Number of binary strings of length n with equal numbers of 00001 and 00010 substrings.at n=14A164192
- Numbers n such that sqrt(36*n+49) is prime.at n=38A168669
- Numbers with digital product = 8.at n=42A199989
- Composite numbers whose product of digits is 8.at n=31A201056
- Triangle T(n, k) = Numbers of ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle of any orientation. Triangle read by rows.at n=33A240439
- Numbers k such that Bernoulli number B_{k} has denominator 1919190.at n=5A295595
- Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=7A299387
- Numbers missing from A317415.at n=15A317417
- Pseudo-involution companion for the Fibonacci generating function.at n=7A344623
- Numbers that are the sum of eight fourth powers in seven or more ways.at n=11A345582
- Numbers that are the sum of eight fourth powers in exactly seven ways.at n=11A345839
- Number of tilings of a 5 X n rectangle using n pentominoes of shapes N, U, Z.at n=30A358933