Properties of the Number 384

Three Hundred Eighty-Four

Basics

Value: 383 → 384 → 385

Parity: even

Prime: No

Previous Prime: 383

Next Prime: 389

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁷ × 3

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000000

Octal: 600

Duodecimal: 280

Hexadecimal: 180

Square: 147456

Square Root: 19.595917942265423

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Least integer of each prime signature A124832; also products of primorial numbers A002110. A25487

3-smooth numbers: numbers of the form 2ⁱ*3^j with i, j >= 0. A3586

Self-inverse permutation of the positive integers induced by partition enumeration in A112798 and partition conjugation. A122111

Numbers all of whose prime divisors are consecutive primes starting at 2. A55932

Double factorials n!!: a(n) = n·a(n-2) for n > 1, a(0) = a(1) = 1. A6882

a(n) = 3·2ⁿ. A7283

Double factorial of even numbers: (2n)!! = 2ⁿ*n!. A165

Expansion of g.f. (1+x)/(1-2·x). A3945

Number of ways of writing n as a sum of 4 squares; also θ series of four-dimensional cubic lattice Z⁴. A118

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