5469
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7296
- Proper Divisor Sum (Aliquot Sum)
- 1827
- 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
- 3644
- Möbius Function
- 1
- Radical
- 5469
- 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
- 41
- 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
- Coordination sequence T1 for Zeolite Code CAS.at n=46A008063
- Coordination sequence T3 for Zeolite Code CAS.at n=46A008065
- Coordination sequence T2 for Zeolite Code SGT.at n=46A008230
- a(n) = floor(binomial(n,8)/8).at n=18A011854
- Numbers k such that the continued fraction for sqrt(k) has period 96.at n=7A020435
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (odd natural numbers), t = (primes).at n=20A024603
- 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 48.at n=26A031546
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 40 ones.at n=20A031808
- Numbers having four 3's in base 5.at n=35A043364
- a(1)=1; a(n+1) is the smallest integer > a(n) such that Sum_{k=a(n)..a(n+1)} 1/sqrt(k) > Pi.at n=47A073347
- Exp(n) is closer to an integer than any previous exp(k) for 1 <= k < n.at n=12A079490
- a(n) = number of partitions of n wherein the sum of the 1's is no more than the sum of the other parts.at n=29A083690
- a(n) = 2*n^3 - 2*n + 9.at n=13A127989
- Expansion of (1-4x^2)/(1+4x+3x^2).at n=8A128416
- a(n) = 3*a(n-1) - 3*a(n-2) + 2*a(n-3), with a(0) = 2, a(1) = -3, a(2) = 3.at n=11A135353
- a(n) = 2*a(n-1) + 3*a(n-2), with a(0) = 1, a(1) = 9.at n=7A137340
- An eighth of the product of three integers surrounding the (n+1)-st prime, minus half of the product of the 3 numbers surrounding n+1.at n=10A141535
- Expansion of the exponential generating function arcsin(2*x)/(2*(1-2*x)^(3/2)).at n=5A143165
- Minimal exponents m such that the fractional part of e^m obtains a minimum (when starting with m=1).at n=14A153701
- Numbers k such that the fractional part of e^k is less than 1/k.at n=5A153702