4276
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 7490
- Proper Divisor Sum (Aliquot Sum)
- 3214
- 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
- 2136
- Möbius Function
- 0
- Radical
- 2138
- Omega Function (Ω)
- 3
- 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
- 25
- 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 T7 for Zeolite Code MEL.at n=42A008156
- Numbers k such that the continued fraction for sqrt(k) has period 94.at n=3A020433
- Numbers k such that k^2 is palindromic in base 3.at n=33A029984
- 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 32.at n=40A031530
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 34 ones.at n=15A031802
- Numbers with exactly five distinct base-8 digits.at n=13A031985
- Number of different products of partitions of n; number of partitions of n into prime parts (1 included); number of distinct orders of Abelian subgroups of symmetric group S_n.at n=44A034891
- Denominators of continued fraction convergents to sqrt(586).at n=10A042123
- Number of asymmetric n-celled polyominoes without holes.at n=9A056884
- McKay-Thompson series of class 51A for the Monster group.at n=53A058704
- Squares written backwards and sorted, duplicates removed.at n=46A074896
- Expansion of 1 / (1 + x^2 - x^3) in powers of x.at n=48A077961
- Expansion of 1/(1+x^2+x^3).at n=48A077962
- Expansion of (1-x)/(1-2*x+x^2+x^3).at n=24A078001
- a(0) = 1; for n>0, a(n) = 1 + coefficient of x^n in expansion of 1/Product_{ n >= 2, n not of the form 2^k-1 } (1-x^n).at n=47A078658
- Vertical of triangular spiral in A051682.at n=30A081271
- a(n) = number of Egyptian fractions 1 = 1/x_1 + ... + 1/x_k (for any k), with 0 < x_1 <= ... <= x_k = n.at n=25A092666
- Nonisomorphic catacondensed monoheptabenzenoids (see reference for precise definition).at n=7A121076
- Expansion of f(q)*f(q^7)/(f(-q)*f(-q^7)) in powers of q where f() is a Ramanujan theta function.at n=29A123862
- Rectangular table, read by antidiagonals, defined by the following rule: start with all 1's in row zero; from then on, row n+1 equals the partial sums of row n excluding terms in columns k = m*(m+1)/2 - 2 (m>=2).at n=60A125781