2498
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3750
- Proper Divisor Sum (Aliquot Sum)
- 1252
- 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
- 1248
- Möbius Function
- 1
- Radical
- 2498
- 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
- 177
- 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 11*2^k - 1 is prime.at n=11A001772
- Prime numbers of measurement.at n=46A002049
- Sum of 4th powers of primes dividing n.at n=41A005065
- Number of n-step self-avoiding walks on a Manhattan lattice.at n=13A006744
- Number of strict first-order maximal independent sets in path graph.at n=27A007383
- a(n) = n^2 - 2.at n=49A008865
- Partial sums of A011863.at n=10A011888
- Number of ferrites M_8Y_n that repeat after 6n+40 layers.at n=13A011963
- Number of integer points (x,y,z) at distance <= 0.5 from sphere of radius n.at n=14A016728
- Expansion of 1/(1-x^10-x^11-x^12-x^13-x^14-x^15-x^16-x^17).at n=65A017893
- Numbers whose least quadratic nonresidue (A020649) is 7.at n=35A025023
- Numbers k such that k^2 has only even digits.at n=40A030097
- 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=14A031546
- Numbers whose set of base-5 digits is {3,4}.at n=44A032829
- Coordination sequence T1 for Zeolite Code SBT.at n=40A033612
- Coordination sequence Z12 for Zeolite Code STT.at n=33A038416
- Denominators of continued fraction convergents to sqrt(403).at n=8A041765
- Base-5 palindromes that start with 3.at n=36A043008
- Numbers n such that string 0,2 occurs in the base 8 representation of n but not of n-1.at n=42A044189
- Numbers n such that string 7,5 occurs in the base 9 representation of n but not of n-1.at n=33A044319