2454
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4920
- Proper Divisor Sum (Aliquot Sum)
- 2466
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 816
- Möbius Function
- -1
- Radical
- 2454
- 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
- 133
- 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
- yes
- Odd
- no
Appears in sequences
- Number of pairs of consecutive integers x, x+1 such that all prime factors of both x and x+1 are at most the n-th prime.at n=16A002071
- Fibonacci numbers written in base 6.at n=15A004689
- Tricapped prism numbers.at n=11A005920
- 7th-order maximal independent sets in path graph.at n=51A007381
- Coordination sequence T3 for Zeolite Code THO.at n=35A008240
- Molien series for A_6.at n=35A008629
- a(n) = floor(n*(n-1)*(n-2)/16).at n=35A011898
- a(n)-th squarefree is sum of first k squarefrees for some k.at n=42A020643
- Numbers k such that Fibonacci(k) == 8 (mod k).at n=22A023177
- Dying rabbits: a(n) = a(n-1) + a(n-2) - a(n-10).at n=18A023440
- a(n) = n^2 + n + 4.at n=49A027689
- Theta series of 6-dimensional perfect lattice P6.6 = A6,1.at n=21A029695
- Number of different values of i^2 + j^2 + k^2 for i,j,k in [ 0,n ] (or [ -n,n ]).at n=36A034966
- Number of partitions of n into parts 4k or 4k+1.at n=49A035362
- Coordination sequence T6 for Zeolite Code SFF.at n=33A038432
- Numbers k such that k-th and (k+1)-st term of A038593 differ by 3.at n=7A038634
- Numbers whose concatenation of prime factors (with multiplicity) is a square.at n=11A038693
- Numbers congruent to 2,3,6,11 mod 12 missing from A042944 (conjectured to be finite).at n=16A042945
- Numbers whose base-7 representation has exactly 5 runs.at n=3A043620
- Numbers n such that string 2,6 occurs in the base 9 representation of n but not of n-1.at n=34A044275