Properties of the Number 1449

One Thousand Four Hundred Forty-Nine

Basics

Value: 1448 → 1449 → 1450

Parity: odd

Prime: No

Previous Prime: 1447

Next Prime: 1451

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 23

Divisors: 1, 3, 7, 9, 21, 23, 63, 69, 161, 207

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110101001

Octal: 2651

Duodecimal: A09

Hexadecimal: 5a9

Square: 2099601

Square Root: 38.06573262134856

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

Stella octangula numbers: a(n) = n*(2·n² - 1). A7588

Multiples of 9 containing a 9 in their decimal representation. A121029

Total number of ON cells at stage n of two-dimensional cellular automaton defined by "Rule 750" using the von Neumann neighborhood. A169707

Triangle read by rows: T(n,k) is the number of permutations of 2 indistinguishable copies of 1..n with exactly k local maxima. A334774

a(n) = 3·n² + 6·n. A67725

Number of compositions of n with weakly increasing differences. A325546

a(n) = n*(n + 17)/2. A56126

Number of partitions into at most a(1) copies of 1, a(2) copies of 2, ... A52337

Number of integer partitions of n whose distinct parts are pairwise coprime. A304709

Numbers k such that both k+2 and k-2 are prime. A87679