Properties of the Number 8978

Eight Thousand Nine Hundred Seventy-Eight

Basics

Value: 8977 → 8978 → 8979

Parity: even

Prime: No

Previous Prime: 8971

Next Prime: 8999

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 67 ²

Divisors: 1, 2, 67, 134, 4489, 8978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100010010

Octal: 21422

Duodecimal: 5242

Hexadecimal: 2312

Square: 80604484

Square Root: 94.75230867899737

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

Write 1,2,... in a clockwise spiral; sequence gives numbers on positive·axis. A33951

Eight bishops and one elephant on a 3 X 3 chessboard. G.f.: (1+x-5·x²)/(1-3·x-x²+6·x³). A175655

a(n) = 2·prime(n)². A79704

Indices of squares (of primes) in the semiprimes. A128301

Sum of digits = 8 times number of digits. A61425

Numbers m with the property that the symmetric representation of σ(m) has three parts of width one. A247687

Maximum number of regions into which the plane can be divided using n (concave) quadrilaterals. A77591

2·p², for p an odd prime. A143928

Numbers k such that there are only a finite nonzero number of sets of k consecutive triangular numbers that sum to a square. A176542

Twice a square but not the sum of 2 distinct squares. A81324