Properties of the Number 298

Two Hundred Ninety-Eight

Basics

Value: 297 → 298 → 299

Parity: even

Prime: No

Previous Prime: 293

Next Prime: 307

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 149

Divisors: 1, 2, 149, 298

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101010

Octal: 452

Duodecimal: 20A

Hexadecimal: 12a

Square: 88804

Square Root: 17.26267650163207

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

Number of polynomial symmetric functions of matrix of order n under separate row and column permutations. A7716

The primes doubled; even semiprimes. A100484

a(n) = binomial(n+1, 2) + n - 1 = n*(n+3)/2 - 1. A34856

Numbers m such that 6m-1, 6m+1 are twin primes. A2822

Nontotients: even numbers k such that φ(m) = k has no solution. A5277

Numbers k such that k and k+1 have the same number of divisors. A5237

Infinite sequence starting with a(0)=0 such that A049820(a(k)) = a(k-1) for all k>=1, where A049820(n) = n - (number of divisors of n). A259934

a(n) = C(n,1) + C(n,2) + C(n,3), or n*(n² + 5)/6. A4006

Number of partitions of n into parts having a common factor. A18783

a(n) = ∑_d∣n p(d), where p(d) = A000041 = number of partitions of d. A47968