Properties of the Number -1923

Nine Hundred Twenty-Three

Basics

Value: -1924 → -1923 → -1922

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 641

Divisors: 1, 3, 641, 1923

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110000011

Octal: -3603

Duodecimal: -1143

Hexadecimal: -783

Square: 3697929

Square Root: 43.8520238985614

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

a(n) = ∑_k=0..n A105595(k)*(-1)^k*A105595(n-k) (interpolated zeros suppressed). A105596

a(n) = 2·n² + 1. A58331

Number of integer partitions of n containing three parts (a,b,c) (repeats allowed) such that a + b = c. A variation of sum-full partitions. A363225

L-toothpick sequence (see Comment lines for definition). A172310

Concatenate the n-th and (n+1)st prime. A45533

Super-3 Numbers (3n³ contains substring '333' in its decimal expansion). A14569

Squarefree products of factors of Fermat numbers (A023394). A94358

Starts of runs of 3 consecutive Gray-code Niven numbers (A344341). A344343

Number of lone-child-avoiding locally disjoint rooted trees whose leaves form an integer partition of n. A316696

Number of hexagons that can be formed with perimeter n. In other words, partitions of n into six parts such that the sum of any 5 is more than the sixth. A69907