Properties of the Number 67100

Sixty-Seven Thousand One Hundred

Basics

Value: 67099 → 67100 → 67101

Parity: even

Prime: No

Previous Prime: 67079

Next Prime: 67103

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 ² × 11 × 61

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 25, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000011000011100

Octal: 203034

Duodecimal: 329B8

Hexadecimal: 1061c

Square: 4502410000

Square Root: 259.03667693977235

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

T(n,k)=Number of nXk binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once. A268789

Number of n X n binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once. A268782

Number of nX5 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once. A268786

Integer part of ∑_k>=0 ∑_j=0..k n^j*A107045(k,j)/A107046(k,j). A107055

A000145(n) / 8 - (n⁵ + 1). A188671

Floor[radius of the inscribed-circle of a regular n-gon with unit sides]. A67100