Properties of the Number 64989

Sixty-Four Thousand Nine Hundred Eighty-Nine

Basics

Value: 64988 → 64989 → 64990

Parity: odd

Prime: No

Previous Prime: 64969

Next Prime: 64997

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 29 × 83

Divisors: 1, 3, 9, 27, 29, 83, 87, 249, 261, 747

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110111011101

Octal: 176735

Duodecimal: 31739

Hexadecimal: fddd

Square: 4223570121

Square Root: 254.92940199200248

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) = n*(8·n² - 5)/3. A63523

Expansion of g.f. x/(1 - 9·x - 2·x²). A15579

Expansion of ∏_k>=1 1/(1 - x^k)^k²*(k+1/2). A279216

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 605", based on the 5-celled von Neumann neighborhood. A283255

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 629", based on the 5-celled von Neumann neighborhood. A283390

Expansion of 1/((1-xc(x)-x^2c(x)²)(1-x^2c(x))) with c(x) the g.f. of A000108. A109268

Convolution of Fibonacci F(n+1), n>=0, with F(n+8), n>=0. A67431

Multiplicative with a(2^e) = 1 and a(p^e) = prevprime(p)^e for odd primes p. A64989

Number of nX6 binary arrays without the pattern 1 1 0 diagonally or antidiagonally. A189108