Properties of the Number 1323

One Thousand Three Hundred Twenty-Three

Basics

Value: 1322 → 1323 → 1324

Parity: odd

Prime: No

Previous Prime: 1321

Next Prime: 1327

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 7 ²

Divisors: 1, 3, 7, 9, 21, 27, 49, 63, 147, 189

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100101011

Octal: 2453

Duodecimal: 923

Hexadecimal: 52b

Square: 1750329

Square Root: 36.373066958946424

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

Powerful numbers (A001694) that are not prime powers (A000961). A286708

a(n) = 3·n². A33428

Triangular array: the fusion of (x+1)ⁿ and (x+2)ⁿ; see Comments for the definition of fusion. A193722

a(n) = period of the sequence {b(m), m>=0}, defined by b(m):=binomial(m+n,n) mod n. A133900

Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power. A52486

Triangle of number of rooted trees with n >= 2 nodes and height h >= 1. A34781

Least k such that there are exactly n ways to choose a sequence of divisors, one of each element of the multiset of prime indices of k (with multiplicity). A355732

"Three-quarter squares": a(n) = n² - A002620(n). A77043

Inverse Moebius transform of triangular numbers. A7437

Numbers of the form p² * q³, where p,q are distinct primes. A143610