Properties of the Number 28951

Twenty-Eight Thousand Nine Hundred Fifty-One

Basics

Value: 28950 → 28951 → 28952

Parity: odd

Prime: No

Previous Prime: 28949

Next Prime: 28961

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 13 × 17 × 131

Divisors: 1, 13, 17, 131, 221, 1703, 2227, 28951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000100010111

Octal: 70427

Duodecimal: 14907

Hexadecimal: 7117

Square: 838160401

Square Root: 170.1499338818561

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Solution of the complementary equation a(n) = 2·a(n-1) + a(n-2) + b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences. A295141

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 459", based on the 5-celled von Neumann neighborhood. A282366

Numbers that are the product of 3 prime factors whose concatenation is a palindrome. A46452

(k-1)/2 where k runs over odd terms of A001372. A129834

Number of n X n 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A281463

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A281469

Numbers represented by quadratic form with Gram matrix [ 2, 1; 1, 4 ] (or the Kleinian 2-d lattice, see A002652). A28951

Number of nX4 0..1 arrays with every element equal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. A297955