Properties of the Number 424

Four Hundred Twenty-Four

Basics

Value: 423 → 424 → 425

Parity: even

Prime: No

Previous Prime: 421

Next Prime: 431

Digit Sum: 10

Digital Root: 1

Palindrome: Yes

Factorization: 2 ³ × 53

Divisors: 1, 2, 4, 8, 53, 106, 212, 424

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101000

Octal: 650

Duodecimal: 2B4

Hexadecimal: 1a8

Square: 179776

Square Root: 20.591260281974

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

Palindromes in base 10. A2113

Numbers k such that (8·10^k + 49)/3 is prime. A270890

Functional determinants; partitions of partitions; Euler transform applied twice to all 1's sequence. A1970

Refactorable numbers: number of divisors of k divides k. Also known as τ numbers. A33950

Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m). A3052

Numbers that contain even digits only. A14263

Multiples of 8. A8590

Numbers m such that ∑_k=1..m (<1/2 + k·r> - <k·r>) = 0, where r=sqrt(2) and < > denotes fractional part. A194368

Lesser of two consecutive numbers each divisible by a square. A68781

Numbers whose sum of digits is 10. A52224