Properties of the Number -21497

Twenty-One Thousand Four Hundred Ninety-Seven

Basics

Value: -21498 → -21497 → -21496

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 37 × 83

Divisors: 1, 7, 37, 83, 259, 581, 3071, 21497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001111111001

Octal: -51771

Duodecimal: -10535

Hexadecimal: -53f9

Square: 462121009

Square Root: 146.61855271417735

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

Array read by antidiagonals: T(m,n) is the number of matchings in the stacked prism graph C_m X P_n. A287428

Number of matchings in graph C₄ X P_n. A33516

Number of integer compositions of n where adjacent parts are indivisible (either way) and the last and first part are also indivisible (either way). A318727

a(n) is the number of 5 element sets of distinct integer sided rectangles that fill an n X n square. A387241

Row sums of triangle A084408. A84411

Row sums of A325433. A325434

Number of matchings in graph P₂ X P₄ X P_n. A33527