4459
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5600
- Proper Divisor Sum (Aliquot Sum)
- 1141
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3528
- Möbius Function
- 0
- Radical
- 91
- Omega Function (Ω)
- 4
- 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
- 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
- no
- Odd
- yes
Appears in sequences
- Number of partitions into non-integral powers.at n=13A000160
- a(n) = floor(1000*log_2(n)).at n=21A004265
- a(n) = round(1000*log_2(n)).at n=21A004266
- Coordination sequence T3 for Zeolite Code MTT.at n=41A008191
- Numbers k such that the continued fraction for sqrt(k) has period 54.at n=17A020393
- Conjecturally, number of infinitely-recurring prime patterns on n consecutive integers.at n=29A023192
- a(n) = 49*(n-1)*(n-2)/2.at n=12A027469
- a(n) = binomial(n+2, 2) + binomial(n+4, 5).at n=12A027658
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 28 ones.at n=37A031796
- "CGJ" (necklace, element, labeled) transform of 1,2,3,4...at n=7A032149
- Number of partitions of n with equal nonzero number of parts congruent to each of 1 and 2 (mod 3).at n=36A035539
- A035539 with periodic zeros stripped.at n=11A035593
- Absolute value of first differences of A038552, divided by 24.at n=52A038581
- Numbers k such that k-th and (k+1)-st term of A038593 differ by 6.at n=27A038637
- Denominators of continued fraction convergents to sqrt(991).at n=7A042919
- Numbers whose base-7 representation contains exactly three 0's.at n=29A043395
- Has both a primitive and imprimitive representation as x^2 + xy + y^2.at n=31A045897
- a(1)=5; for n >= 2, if n = Product p_i^e_i, then a(n) = Product p_{i+3}^e_i.at n=39A045968
- A Diaconis-Mosteller approximation to the Birthday problem function.at n=23A050255
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 3 skipped primes.at n=32A050770