Properties of the Number 65480

Sixty-Five Thousand Four Hundred Eighty

Basics

Value: 65479 → 65480 → 65481

Parity: even

Prime: No

Previous Prime: 65479

Next Prime: 65497

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 5 × 1637

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1637, 3274

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111111001000

Octal: 177710

Duodecimal: 31A88

Hexadecimal: ffc8

Square: 4287630400

Square Root: 255.8906016249913

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 collinear point-triples in an n X n grid. A938

Triangle read by rows: T(n,k) is the number of relations from an n-element set to a k-element set that are not one-to-one functions. A344115

O.g.f. A(x) satisfies: 0 = [xⁿ] exp( n² * Integral A(x)³ dx ) / A(x), for n > 0. A305141

Odd primes p such that Pi_3,1(p) = Pi_3,2(p) - 1, where Pi_m,n(p) denotes the number of primes q <= p with q == n (mod m). A98044

Decimal expansion of ∏_{p prime} (1 - 1/(p²+p-1)). A65480