Properties of the Number -21263

Twenty-One Thousand Two Hundred Sixty-Three

Basics

Value: -21264 → -21263 → -21262

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 11 × 1933

Divisors: 1, 11, 1933, 21263

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001100001111

Octal: -51417

Duodecimal: -1037B

Hexadecimal: -530f

Square: 452115169

Square Root: 145.81838018576397

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

Number of non-equivalent ways to tile an n X n X n triangular area with two 2 X 2 X 2 triangular tiles and an appropriate number (= n²-8) of 1 X 1 X 1 tiles. A286444

Number of signed trees with n nodes and p positive edges. Triangle T(n,p) read by rows, 0<=p<n. A302939

Least number having exactly two odd prime factors that differ by 2·n². A190052

Smallest numbers containing exactly n smaller numbers when written as English number names. A159453

T(n,n-4), array T as in A038792. A38794

a(n) is the least number k having exactly n representations as m + σ(m), where σ(m) is the sum of the divisors of m. A186273