Properties of the Number -2423

Four Hundred Twenty-Three

Basics

Value: -2424 → -2423 → -2422

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2423

Divisors: 1, 2423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100101110111

Octal: -4567

Duodecimal: -149B

Hexadecimal: -977

Square: 5870929

Square Root: 49.22397789695587

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

∏_n>=1 1 / (1 - a(n)*xⁿ) = 1 + ∑_n>=1 φ(n)*xⁿ, where φ = A000010. A353948

Triangle of coefficients of powers of e² in numerators of ∑_k>=1 {1 / (1 + k²*π²)ⁿ}. A85470

a(n) = (n⁶ - 126·n⁵ + 6217·n⁴ - 153066·n³ + 1987786·n² - 13055316·n + 34747236)/36. A121888

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 353", based on the 5-celled von Neumann neighborhood. A271308

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 395", based on the 5-celled von Neumann neighborhood. A271688

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 475", based on the 5-celled von Neumann neighborhood. A272450

Start with 2, then successively subtract the primes 3, 5, 7, ... A282329

Smallest prime of the form (2n+1)p + 2n with p prime. A136026

Primes formed by concatenating k with k-1. A52089

Primes of the form 24·k - 1. A134517