2877
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
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4416
- Proper Divisor Sum (Aliquot Sum)
- 1539
- 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
- 1632
- Möbius Function
- -1
- Radical
- 2877
- Omega Function (Ω)
- 3
- 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
- 53
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Positions of remoteness 6 in Beans-Don't-Talk.at n=41A005694
- Coordination sequence T1 for Zeolite Code AFI.at n=37A008014
- Coordination sequence T3 for Zeolite Code BRE.at n=35A008060
- Coordination sequence T4 for Zeolite Code MEI.at n=39A008149
- Expansion of (1-x^6) / (1-x)^6.at n=10A008488
- Coordination sequence T1 for Zeolite Code VNI.at n=33A009907
- Number of partitions of n into its divisors with at least one part of size 1.at n=53A014648
- a(n) = n*(13*n + 1)/2.at n=21A022271
- Lucky numbers with smallest increasing gaps (upper terms).at n=12A031885
- Lucky numbers with size of gaps equal to 10 (lower terms).at n=30A031892
- Schoenheim bound L_1(n,4,3).at n=38A036831
- Denominators of continued fraction convergents to sqrt(907).at n=7A042753
- Numbers n such that string 7,7 occurs in the base 10 representation of n but not of n-1.at n=28A044409
- Numbers n such that string 7,7 occurs in the base 10 representation of n but not of n+1.at n=28A044790
- Positions of records in A346778.at n=45A049476
- a(n) = Sum_{i=0..2n} (-1)^i * T(i,2n-i), array T as in A048149.at n=30A049713
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 4.at n=39A051969
- Triangle T(n,m) of number of labeled n-node T_0-hypergraphs with m distinct hyperedges (empty hyperedge excluded), m=0,1,...,2^n-1.at n=20A059087
- a(n) = n*(3*n + 11)/2.at n=42A059845
- Numbers k such that k divides the (right) concatenation of all numbers <= k written in base 19 (most significant digit on right).at n=17A061948