Properties of the Number 23019

Twenty-Three Thousand Nineteen

Basics

Value: 23018 → 23019 → 23020

Parity: odd

Prime: No

Previous Prime: 23017

Next Prime: 23021

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7673

Divisors: 1, 3, 7673, 23019

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101100111101011

Octal: 54753

Duodecimal: 113A3

Hexadecimal: 59eb

Square: 529874361

Square Root: 151.7201370945861

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

Numbers whose square is a zeroless pandigital number (i.e., use the digits 1 through 9 once). A71519

E.g.f. satisfies: A'(x) = A(x)⁴ * A(-x) with A(0) = 1. A235322

Number of partitions p of n such that (maximal multiplicity of the parts of p) < (number of distinct parts of p). A240305

Expansion of ∏_k>=1 (1-q^2·k)/(1-q^k)⁴. A350642

Numbers whose square contains all of the digits 1 through 9. A294661

Number of weakly unimodal compositions of n in which the greatest part occurs exactly seven times. A320318

Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with x(i)+x(j), x(i+1)+x(j+1), -(x(i)+x(j+1)), and -(x(i+1)+x(j)) having one or three distinct values for every i<=n and j<=n. A211476

Triangle read by rows: T(n,k) = n·T(n-1,k) + n - k starting at T(n,n)=0. A81114

Numbers n such that n contains exactly 5 digits, all distinct, and n² contains exactly 9 distinct digits. A204691

Number of partitions of n into parts of 21 kinds. A23019