Properties of the Number 23129

Twenty-Three Thousand One Hundred Twenty-Nine

Basics

Value: 23128 → 23129 → 23130

Parity: odd

Prime: No

Previous Prime: 23117

Next Prime: 23131

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 101 × 229

Divisors: 1, 101, 229, 23129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101001011001

Octal: 55131

Duodecimal: 11475

Hexadecimal: 5a59

Square: 534950641

Square Root: 152.08221460775746

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

Main diagonal of array in A083140. A83141

Semiprimes whose prime factors differ from each other in one bit position only. A261077

Semiprimes (A001358) whose digit reversal is a pentagonal number (A000326). A115708

Brilliant numbers k such that 2k+1 is also brilliant. A85649

Brilliant numbers (A078972) whose digit reversal is a pentagonal number (A000326). A115679

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 60. A31648

a(1) = 1; for n>1, a(n) = the smallest number p > a(n-1) such that (a(n-1)+p)/2 is a cube. A126950

Signature sequence of sqrt(e). A23129