Properties of the Number -24642

Twenty-Four Thousand Six Hundred Forty-Two

Basics

Value: -24643 → -24642 → -24641

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: Yes

Factorization: 2 × 3 ² × 37 ²

Divisors: 1, 2, 3, 6, 9, 18, 37, 74, 111, 222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000001000010

Octal: -60102

Duodecimal: -12316

Hexadecimal: -6042

Square: 607228164

Square Root: 156.97770542341354

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

a(n) = n*(n+1)²/2. A6002

a(n) = 18·n². A195321

Palindromic and divisible by 9. A45644

Palindromes with exactly 5 prime factors (counted with multiplicity). A46331

a(n) = n*(2·n+1)². A84367

Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the n-th alternating generalized harmonic number H'(m,k), for k = 5. A128675

Maximal value of ∑_i=1..n (p(i) - p(i+1))², where p(n+1) = p(1), as p ranges over all permutations of {1, 2, ..., n}. A64842

Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k. A120361

a(n) = (p³ - p²)/2, where p = prime(n). A138416

a(n) = n² * floor(n/2). A265645