Properties of the Number 23128

Twenty-Three Thousand One Hundred Twenty-Eight

Basics

Value: 23127 → 23128 → 23129

Parity: even

Prime: No

Previous Prime: 23117

Next Prime: 23131

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 7 ² × 59

Divisors: 1, 2, 4, 7, 8, 14, 28, 49, 56, 59

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101001011000

Octal: 55130

Duodecimal: 11474

Hexadecimal: 5a58

Square: 534904384

Square Root: 152.07892687680302

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

Partial sums of A299291. A299292

a(1) = 1, a(n+1) is the sum of a(n) and floor( arithmetic mean of a(1) ... a(n) ). A65094

Numbers k such that there are exactly four biquadratefree powerful numbers (A338325) between k² and (k+1)². A338391

dot product (n,n-1,...2,1).(3,4,...,n,1,2). A26054

a(n) = dot_product(1,2,...,n)*(4,5,...,n,1,2,3). A26040

Column 0 of the matrix square of triangle A167015. A167142

a(n) = 8·a(n-1) - 5·a(n-2), with a(0)=0, a(1)=1. A190977

Main diagonal of square arrays A114881 and A249741. A249743

a(n) = (3·n+1)*(5·n+1). A144459

Number of strings of numbers x(i=1..6) in 0..n with sum i³*x(i)² equal to 216·n². A184307