Properties of the Number 28022

Twenty-Eight Thousand Twenty-Two

Basics

Value: 28021 → 28022 → 28023

Parity: even

Prime: No

Previous Prime: 28019

Next Prime: 28027

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 14011

Divisors: 1, 2, 14011, 28022

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110101110110

Octal: 66566

Duodecimal: 14272

Hexadecimal: 6d76

Square: 785232484

Square Root: 167.3977299726612

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

Positions of squares in A259934. A263276

a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = 2·n - 2 - 2^p+1 and p is the unique integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = 1, a(2) = 2 and a(3) = 4. A49915

Number T(n,k) of Dyck paths of semilength n with exactly k (possibly overlapping) occurrences of some of the consecutive patterns of Dyck paths of semilength 3; triangle T(n,k), n>=0, 0<=k<=max(0,n-2), read by rows. A243998

Numbers having four 6's in base 8. A43448

Expansion of 1/((1-2x)(1-9x)(1-10x)(1-12x)). A28022

Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A280957