Properties of the Number 1441

One Thousand Four Hundred Forty-One

Basics

Value: 1440 → 1441 → 1442

Parity: odd

Prime: No

Previous Prime: 1439

Next Prime: 1447

Digit Sum: 10

Digital Root: 1

Palindrome: Yes

Factorization: 11 × 131

Divisors: 1, 11, 131, 1441

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10110100001

Octal: 2641

Duodecimal: A01

Hexadecimal: 5a1

Square: 2076481

Square Root: 37.960505792204614

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 "ON" cells at n-th stage in the "Ulam-Warburton" two-dimensional cellular automaton. A147562

Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6·k*(k-1) + 1. A3154

Square array, read by antidiagonals, where row n equals the crystal ball sequence for the 2·n-dimensional lattice A_n x A_n. A143007

Concentric hexagonal numbers: floor(3·n²/2). A32528

Number of complete subsets of {1..n}. A326020

Palindromic in bases 6 and 10. A29963

a(n) = n² - 3. A28872

Palindromic in bases 10 and 32. A99165

Number of strict integer partitions of n with no adjacent parts having quotient > 2. A342095

Moebius transform of A064987, n*σ(n). A69097