Properties of the Number 478

Four Hundred Seventy-Eight

Basics

Value: 477 → 478 → 479

Parity: even

Prime: No

Previous Prime: 467

Next Prime: 479

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 239

Divisors: 1, 2, 239, 478

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011110

Octal: 736

Duodecimal: 33A

Hexadecimal: 1de

Square: 228484

Square Root: 21.863211109075447

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 partitions of n that do not contain 1 as a part. A2865

The primes doubled; even semiprimes. A100484

Companion Pell numbers: a(n) = 2·a(n-1) + a(n-2), a(0) = a(1) = 2. A2203

Number of flat partitions of n: partitions {a_i} with each |a_i - a_i-1| <= 1. A34296

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

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

a(0) = 1, a(n) = sum of digits of all previous terms. A4207

Number of partitions of n that do not contain parts less than the smallest part of the partitions of n-1. A187219

Numbers k with A033676(k)=2, where A033676 is the largest divisor <= sqrt(k). A161344

Number of partitions of n into at most 4 parts. A1400