Properties of the Number 28067

Twenty-Eight Thousand Sixty-Seven

Basics

Value: 28066 → 28067 → 28068

Parity: odd

Prime: No

Previous Prime: 28057

Next Prime: 28069

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 13 × 17 × 127

Divisors: 1, 13, 17, 127, 221, 1651, 2159, 28067

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110110100011

Octal: 66643

Duodecimal: 142AB

Hexadecimal: 6da3

Square: 787756489

Square Root: 167.5320864789787

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

Numerators of convergents to A058914. A48817

Numbers k such that 4*φ(k) = 3*σ(k). A65819

Where A007535 reaches a record. A98653

Integer part of log(n!)^{1 + log(1 + log(n})). A62443

Numbers n such that the sum of the first n primes is divisible by n + 1. A98074

Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000101 00010101 or 01010101. A260008

Number of irredundant sets in the n-dipyramidal graph. A297712

Binary encodings of reducible polynomials over GF(2)that are fixed by blue code: a(n) = A091242(A234749(n)). A234752

Expansion of 1/((1-3x)(1-5x)(1-8x)(1-12x)). A28067