Properties of the Number 67290

Sixty-Seven Thousand Two Hundred Ninety

Basics

Value: 67289 → 67290 → 67291

Parity: even

Prime: No

Previous Prime: 67289

Next Prime: 67307

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 2243

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 2243, 4486

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000011011011010

Octal: 203332

Duodecimal: 32B36

Hexadecimal: 106da

Square: 4527944100

Square Root: 259.40316112183365

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

Maximal entry in row n of triangle in A169940. A169944

Consider the 2^n-1 monic polynomials f(x) with coefficients 0 or 1, degree n and f(0)=1. Sequence gives triangle read by rows, in which T(n,k) (n>=1) is the number of such polynomials of thickness k (2 <= k <= n+1). A169940

Numbers k such that k and 5·k, taken together, are pandigital. A115925

A(n, k) is the n-th binomial transform of the Catalan sequence (A000108) evaluated at k. Array read by descending antidiagonals for n >= 0 and k >= 0. A271025

Numbers n such that prime(n)<n*τ(n) where τ(n) is the number of divisors of n. A67290