Properties of the Number 28996

Twenty-Eight Thousand Nine Hundred Ninety-Six

Basics

Value: 28995 → 28996 → 28997

Parity: even

Prime: No

Previous Prime: 28979

Next Prime: 29009

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 11 × 659

Divisors: 1, 2, 4, 11, 22, 44, 659, 1318, 2636, 7249

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000101000100

Octal: 70504

Duodecimal: 14944

Hexadecimal: 7144

Square: 840768016

Square Root: 170.28211884986632

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

a(n) is the smallest number, larger than the previous, such that the RMS (Root Mean Square) of a(0) through a(n) is an integer. A141393

Denominators of continued fraction convergents to sqrt(571). A42095

Values of z in solutions (x,y,z) to the Diophantine equation x³-x²+y³-y²=z³-z², with 1<x<y<z arranged in order of increasing x. A138669

Numbers which do not reach zero under either of the iterations: x -> floor(sqrt(x)) * (x - floor(sqrt(x))²) or y -> ceiling(sqrt(y)) * (ceiling(sqrt(y))² - y). A219963

Number of 2-sided strip polyiamonds with n cells. A151518

Expansion of ∑_k>=2 x^prime(k) / (1 - ∑_k>=2 x^prime(k))². A281853

Numbers k such that k! + 1 is prime. A2981

Decimal expansion of tangent of 89 degrees. A19987

a(n) = (n!)² + 1. A20549

θ series of quadratic form with Gram matrix [ 4, 1, 0, 2; 1, 4, 2, 0; 0, 2, 4, -1; 2, 0, -1, 4 ]. A28996