Properties of the Number 328

Three Hundred Twenty-Eight

Basics

Value: 327 → 328 → 329

Parity: even

Prime: No

Previous Prime: 317

Next Prime: 331

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 41

Divisors: 1, 2, 4, 8, 41, 82, 164, 328

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101001000

Octal: 510

Duodecimal: 234

Hexadecimal: 148

Square: 107584

Square Root: 18.110770276274835

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

Sum of the first n primes. A7504

Numbers whose base-3 representation contains no 2. A5836

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

Numbers whose prime indices are inseparable. A335448

Numbers that are products of 4 primes. A14613

a(n) = 2*(a(n-1) + a(n-2)), a(0) = 0, a(1) = 1. A2605

Numbers that are not cubefree. Numbers divisible by a cube greater than 1. Complement of A004709. A46099

Sum of remainders of n mod k, for k = 1, 2, 3, ..., n. A4125

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Partial sums of A243980. A244050