Properties of the Number 28999

Twenty-Eight Thousand Nine Hundred Ninety-Nine

Basics

Value: 28998 → 28999 → 29000

Parity: odd

Prime: No

Previous Prime: 28979

Next Prime: 29009

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 47 × 617

Divisors: 1, 47, 617, 28999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000101000111

Octal: 70507

Duodecimal: 14947

Hexadecimal: 7147

Square: 840942001

Square Root: 170.2909275328548

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

Palindromic numbers in bases 2 and 8 written in base 10. A259380

Numbers k such that k¹⁴ == 1 (mod 15³). A56087

Number A(n,k) of k-tuples (p₁, p₂, ..., p_k) of Dyck paths of semilength n, such that each p_i is never below p_i-1 and the upper path p_k only touches the x-axis at its endpoints; square array A(n,k), n>=0, k>=0, read by antidiagonals. A378112

Number of pairs of nested Dyck paths from (0,0) to (n,n) such that the upper path only touches the diagonal at its endpoints. A355281

Base-8 palindromes that start with 7. A43027

Numerical distance between m-th and (n+m)-th circles in a loxodromic sequence of circles in which each 4 consecutive circles touch. A45821

Antidiagonal sums of triangle A121775. A121776

Numbers n = concat(x,y) such that (x - φ(x)) * (y - φ(y)) = n - φ(n), where n - φ(n) is the Euler cototient function of n. A272157

Binary expansion of arctan(1/2)/π. A28999