Properties of the Number 9879

Nine Thousand Eight Hundred Seventy-Nine

Basics

Value: 9878 → 9879 → 9880

Parity: odd

Prime: No

Previous Prime: 9871

Next Prime: 9883

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 37 × 89

Divisors: 1, 3, 37, 89, 111, 267, 3293, 9879

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010010111

Octal: 23227

Duodecimal: 5873

Hexadecimal: 2697

Square: 97594641

Square Root: 99.39315871829409

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

Number of length n inversion sequences avoiding the patterns 110, 120, and 021. A279557

Fourth column (r=3) of FS(3) staircase array A062745. A62748

Odd composite integers m such that F(m)² == 1 (mod m), where F(m) is the m-th Fibonacci number. A337231

Numbers with rounded up arithmetic mean of digits = 9. A178369

Starting numbers for which the RATS sequence has eventual period 14. A114615

Start with 1015 and repeatedly reverse the digits and add 4 to get the next term. A117807

Odd composite integers m such that A005248(m) == 3 (mod m). A335672

n written in fractional base 10/9. A24664

Numbers k that divide Lucas(k) + 1. A94398

a(n) = ∑_{k=0..floor(n/3)} 2^n-3·k * binomial(2·n-4·k+1,2·k). A387692