Properties of the Number -24742

Twenty-Four Thousand Seven Hundred Forty-Two

Basics

Value: -24743 → -24742 → -24741

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: Yes

Factorization: 2 × 89 × 139

Divisors: 1, 2, 89, 139, 178, 278, 12371, 24742

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -110000010100110

Octal: -60246

Duodecimal: -1239A

Hexadecimal: -60a6

Square: 612166564

Square Root: 157.29589950154454

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A299675

Number of signed trees with n nodes. A60

Numbers k such that σ(k) = σ(k - d(k)). A277273

Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A299670

Palindromes that can be written as the sum of two palindromic primes. A356824

Palindromic untouchable numbers. A48187

Palindromic even numbers with an odd number of distinct prime factors. A75809

Lenny Conundrum #168: Neopet species in alphabetical order, converted to digits by the phone keypad code. A119568

Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A299674

Palindromic integers > 0, whose 'Reverse and Add!' trajectory (presumably) does not lead to another palindrome. A70001