5598
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 27
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 12168
- Proper Divisor Sum (Aliquot Sum)
- 6570
- 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
- 1860
- Möbius Function
- 0
- Radical
- 1866
- Omega Function (Ω)
- 4
- 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
- 67
- 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
- Aliquot sequence starting at 138.at n=9A008888
- Aliquot sequence starting at 150.at n=8A008889
- Aliquot sequence starting at 168.at n=6A008890
- Number of irreducible alternating Euler sums of depth 6 and weight 6+2n.at n=17A011796
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AWW = AlPO4-22 [Al24P24O96].2R starting with a T2 atom.at n=5A018993
- a(n) = (d(n)-r(n))/5, where d = A026049 and r is the periodic sequence with fundamental period (4,1,4,0,1).at n=39A026051
- a(n) = T(2n+1,n+2), T given by A026736.at n=6A026855
- Denominators of continued fraction convergents to sqrt(857).at n=11A042655
- Numbers whose base-5 representation contains exactly three 3's and two 4's.at n=14A045306
- Numbers n such that 203*2^n-1 is prime.at n=9A050853
- Numbers k such that x^k + x^2 + 1 is irreducible over GF(7).at n=11A059006
- Number of distinct products i*j*k for 1 <= i < j <= k <= n.at n=45A100436
- Numbers n such that 4*10^n + 3*R_n - 2 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=23A102988
- Triangle read by rows, related to A108283.at n=23A108284
- Riordan array (1/sqrt(1-2*x-3*x^2), M(x)-1) where M(x) is the g.f. of the Motzkin numbers A001006.at n=48A114422
- Numbers k such that k + sigma(k) is a triangular number.at n=30A115904
- Largest terms a(n) forming a self-convolution of an integer sequence (A132832) such that: a(n) <= 2*a(n-1) for n>0 with a(0)=1.at n=13A132831
- Expansion of Product_{k > 0} (1 + A147665(k)*x^k).at n=25A147871
- Triangle T : T(n,k)= binomial(n,k)*A000957(n+1-k).at n=46A171616
- Numbers k such that 9k+4 are terms in A072841.at n=15A175518