Properties of the Number 49980

Forty-Nine Thousand Nine Hundred Eighty

Basics

Value: 49979 → 49980 → 49981

Parity: even

Prime: No

Previous Prime: 49957

Next Prime: 49991

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 7 ² × 17

Divisors: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100001100111100

Octal: 141474

Duodecimal: 24B10

Hexadecimal: c33c

Square: 2498000400

Square Root: 223.56207191739836

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) = floor(C(n,4)/5). A11795

List of codewords in binary lexicode with Hamming distance 8 written as decimal numbers. A75940

Numbers k such that ω(k) = 5 and the largest prime factor of k equals the sum of its remaining distinct prime factors, where ω(k) = A001221(k). A383729

Fourth accumulation array, T, of the natural number array A000027, by antidiagonals. A185509

Rows of binary Walsh matrices interpreted as reverse binary numbers. A228539

G.f.: ∑_n>=0 (n+1) * xⁿ * (1 + xⁿ)ⁿ / (1 + xⁿ⁺¹)ⁿ⁺². A326285

Fermat coefficients. A970

a(n) = binomial(5n+6, 4)/5 for n >= 0. A238471

Numbers k such that k and k² use only the digits 0, 2, 4, 8 and 9. A136909

Numbers with prime factorization pqrs^2t^2. A189989