Properties of the Number 496

Four Hundred Ninety-Six

Basics

Value: 495 → 496 → 497

Parity: even

Prime: No

Previous Prime: 491

Next Prime: 499

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 31

Divisors: 1, 2, 4, 8, 16, 31, 62, 124, 248, 496

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111110000

Octal: 760

Duodecimal: 354

Hexadecimal: 1f0

Square: 246016

Square Root: 22.271057451320086

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: Yes

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

Triangular numbers: a(n) = binomial(n+1,2) = n*(n+1)/2 = 0 + 1 + 2 + ... + n. A217

Perfect numbers k: k is equal to the sum of the proper divisors of k. A396

Hexagonal numbers: a(n) = n*(2·n-1). A384

Multiply-perfect numbers: n divides σ(n). A7691

a(n) = 2^n-1*(2ⁿ - 1), n >= 0. A6516

Harmonic or Ore numbers: numbers k such that the harmonic mean of the divisors of k is an integer. A1599

Numbers that are products of 5 primes (or 5-almost primes, a generalization of semiprimes). A14614

Numbers of the form 2ⁱ - 2^j with i >= j. A23758

a(n) = n*σ(n). A64987

a(n) = binomial(n,2): number of size-2 subsets of {0,1,...,n} that contain no consecutive integers. A161680