Properties of the Number 28739

Twenty-Eight Thousand Seven Hundred Thirty-Nine

Basics

Value: 28738 → 28739 → 28740

Parity: odd

Prime: No

Previous Prime: 28729

Next Prime: 28751

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 29 × 991

Divisors: 1, 29, 991, 28739

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000001000011

Octal: 70103

Duodecimal: 1476B

Hexadecimal: 7043

Square: 825930121

Square Root: 169.52580924449234

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

Odd semiprimes p·q, such that Stern polynomial B(p·q,x) is a product of B(p,x) and B(q,x). A391256

Number of distinct sets of nonnegative integers with perimeter n, as defined in the comments. A182372

Indices of primes in the 9th-order Fibonacci number sequence, A127193. A256498

Numbers whose base-13 representation has exactly 5 runs. A43660

The minimal Skewes number for prime n-tuplets, choosing the n-tuplet with latest occurrence of the first sign change relative to the Hardy-Littlewood prediction when more than one type of n-tuplets exists (A083409(n)>1) for the given n. A332493

Nonsquares mod 26. A28739

Number of nX3 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero. A230589