3554
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5334
- Proper Divisor Sum (Aliquot Sum)
- 1780
- 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
- 1776
- Möbius Function
- 1
- Radical
- 3554
- 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
- 118
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that 4!*(2k-5)!/(k!*(k-1)!) is an integer.at n=33A004784
- 5!(2n-6)!/n!(n-1)! is an integer.at n=38A004785
- Coordination sequence T10 for Zeolite Code EUO.at n=37A008096
- Coordination sequence T4 for Zeolite Code SGT.at n=37A008232
- Coordination sequence T4 for Zeolite Code CON.at n=42A009871
- Numbers k such that the continued fraction for sqrt(k) has period 7.at n=27A010338
- Numbers k such that 147*2^k+1 is prime.at n=25A032423
- Numbers in which all pairs of consecutive base-6 digits differ by 2.at n=43A033084
- Coordination sequence T2 for Zeolite Code SBE.at n=48A033605
- Denominators of continued fraction convergents to sqrt(7).at n=12A041009
- Base-6 palindromes that start with 2.at n=40A043011
- Number of partitions of n with equal number of parts congruent to each of 0, 1 and 2 (mod 4).at n=53A046766
- Starting positions of strings of 2 5's in the decimal expansion of Pi.at n=34A050238
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 96 ).at n=33A063369
- a(n) = Lucas(n+1) - (n+1).at n=15A066982
- Number of partitions of n into distinct parts such that number of parts is odd.at n=56A067659
- Number of partitions of n into distinct parts such that number of parts is even.at n=56A067661
- a(n) = n*(14*n^2 - 21*n + 13)/6.at n=12A071229
- Expansion of (1+31*x-2*x^2-2*x^3)/(1-16*x^2+x^4).at n=6A077397
- a(n) is the least number m such that the minimal exponent for which reverse(m^n) = prime holds is n. Thus reverse(m^k) is composite for k = 1, .., n-1.at n=54A085325