Properties of the Number 28873

Twenty-Eight Thousand Eight Hundred Seventy-Three

Basics

Value: 28872 → 28873 → 28874

Parity: odd

Prime: No

Previous Prime: 28871

Next Prime: 28879

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 13 × 2221

Divisors: 1, 13, 2221, 28873

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000011001001

Octal: 70311

Duodecimal: 14861

Hexadecimal: 70c9

Square: 833650129

Square Root: 169.92056967889437

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

Expansion of ∏_k>=0 1/(1-x^5·k+1)^5·k+1. A285049

Numbers k such that the continued fraction for sqrt(k) has period 81. A20420

Expansion of (1+62·x+563·x²+1032·x³+467·x⁴+50·x⁵+x⁶)/(1-x)⁷. A160816

Expansion of ∏_k>=1 1/(1 - k²*x^k²). A282209

a(n) = N^1/4 * log(N) / sqrt(log(log(N))) rounded to nearest integer, with N=10ⁿ. Related to operation count of the deterministic factorization of an integer N using an improved Pollard-Strassen method. A309917

Number of partitions of n into parts not of the form 11k, 11k+4 or 11k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 4 are greater than 1. A35947

Numbers k such that k² - 3 is prime. A28873