Properties of the Number 28945

Twenty-Eight Thousand Nine Hundred Forty-Five

Basics

Value: 28944 → 28945 → 28946

Parity: odd

Prime: No

Previous Prime: 28933

Next Prime: 28949

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 7 × 827

Divisors: 1, 5, 7, 35, 827, 4135, 5789, 28945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000100010001

Octal: 70421

Duodecimal: 14901

Hexadecimal: 7111

Square: 837813025

Square Root: 170.1323014597757

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

Numbers n such that A280864(n) = n. A280754

E.g.f.: ((1+x)/(1-x))^1/3*((1+x+x²)/(1-x+x²))^1/6. A123014

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 694", based on the 5-celled von Neumann neighborhood. A272832

a(n) = a(n-1) + a(n-3), with a(0) = 1, a(1) = 4, a(2) = 8. A385633

a(n) = A006720(n)² (squared terms of Somos-4 sequence). A28945