4360
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 9900
- Proper Divisor Sum (Aliquot Sum)
- 5540
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1728
- Möbius Function
- 0
- Radical
- 1090
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 46
- 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
- a(n) = binomial(2*n-2,n-1)/n - 2^(n-1) + n.at n=9A004303
- Numbers n such that n is a substring of its square when both are written in base 2.at n=43A018826
- Numbers n such that n is a substring of its square in base 8 (written in base 10).at n=12A018832
- a(n) = Sum_{k=1..n} k*floor( prime(k)/k ).at n=48A024927
- Position of n^3 + 9 in A024975.at n=33A024979
- a(n) = (d(n)-r(n))/2, where d = A026057 and r is the periodic sequence with fundamental period (0,0,1,0).at n=30A026058
- 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 33.at n=13A031531
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 33.at n=1A031711
- "DIK" (bracelet, indistinct, unlabeled) transform of 5,5,5,5...at n=5A032286
- Numerators of continued fraction convergents to sqrt(419).at n=6A041796
- Numbers whose base-4 representation contains exactly four 0's and two 1's.at n=31A045035
- Ooguri-Vafa invariants of disk degeneracies for brane I or brane II in the O(K) -> P^2 geometry.at n=7A061629
- Number of stable matchings in a certain form of Pseudo-Latin squares of order n based on Latin subsquares.at n=11A069124
- Numbers k such that A068976(k) divides k.at n=43A069144
- A certain class of stable matchings.at n=11A069156
- Number of subsets of {1, ..., n} that are double-free but not sum-free.at n=15A088810
- Antidiagonal sums of triangle A097186, in which the n-th row polynomial R_n(y) is formed from the initial (n+1) terms of g.f. A057083(y)^(n+1), where R_n(1/3) = 3^n for all n>=0.at n=8A097187
- Number of distinct products i*j*k for 1 <= i < j <= k <= n.at n=41A100436
- a(n) is the number of positive integers <= 10^n that are divisible by no prime exceeding 3.at n=35A100752
- Nonnegative n such that 6*n^2 + 6*n + 1 is a square.at n=4A105038