Properties of the Number 64889

Sixty-Four Thousand Eight Hundred Eighty-Nine

Basics

Value: 64888 → 64889 → 64890

Parity: odd

Prime: No

Previous Prime: 64879

Next Prime: 64891

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 11 × 17 × 347

Divisors: 1, 11, 17, 187, 347, 3817, 5899, 64889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 1111110101111001

Octal: 176571

Duodecimal: 31675

Hexadecimal: fd79

Square: 4210582321

Square Root: 254.73319375377838

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

Coefficient of x⁴ in expansion of (1+x+x²)ⁿ. A5712

Totally multiplicative sequence with a(p) = a(p-1) + 8 for prime p. A166705

Number of reduced words of length n in the Weyl group A₉. A161457

Numbers m such that the Stern polynomial B(m,x) is irreducible and self-reciprocal. A186893

Terminating decimals of length n of form p/5^q using at most one of each nonzero digit. A27905

a(n) = trinomial(2·n, 4) = (1/6)*n*(2·n - 1)*(2·n² + 7·n - 3). A302710

Square array A(n,k) = A276945(n,k)-1, read by descending antidiagonals: A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc. A286615

Denominators of partial sums of reciprocals of A051451 (A051451 includes lcm(1,...,x), x=power of prime from A000961 and also contains 1). A64889