4250
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 8424
- Proper Divisor Sum (Aliquot Sum)
- 4174
- 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
- 1600
- Möbius Function
- 0
- Radical
- 170
- Omega Function (Ω)
- 5
- 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
- 126
- 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
- Coordination sequence T1 for Zeolite Code MON.at n=40A008181
- Coordination sequence T3 for Zeolite Code -CHI.at n=41A009848
- Coordination sequence T2 for Zeolite Code -WEN.at n=47A009863
- Coordination sequence for FeS2-Marcasite, S position.at n=32A009954
- Numbers k such that k | 13^k + 1.at n=18A015963
- Numbers k such that the continued fraction for sqrt(k) has period 11.at n=36A020350
- Expansion of 1/Product_{m>=1} (1 - m*q^m)^25.at n=3A022749
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = A000201 (lower Wythoff sequence), t = A001950 (upper Wythoff sequence).at n=21A025119
- Numbers that are the sum of 2 nonzero squares in exactly 4 ways.at n=16A025287
- Numbers that are the sum of 2 nonzero squares in 4 or more ways.at n=16A025295
- Numbers that are the sum of 2 distinct nonzero squares in exactly 4 ways.at n=16A025305
- Numbers that are the sum of 2 distinct nonzero squares in 4 or more ways.at n=16A025314
- Theta series of 6-dimensional 11-modular even lattice of minimal norm 4.at n=33A029586
- Nonsquarefree k such that Pell equation x^2 - k*y^2 = -1 is soluble.at n=34A031397
- Multiplicity of highest weight (or singular) vectors associated with character chi_91 of Monster module.at n=42A034479
- Sum of n-th powers of divisors of 56.at n=2A034669
- Coordination sequence T5 for Zeolite Code STT.at n=43A038415
- Numbers k such that sopfr(k) = sopfr(k + sopfr(k)).at n=12A050780
- (Terms in A029617)/2.at n=43A051432
- (Terms in A029631)/2.at n=41A051458