Properties of the Number 18948

Eighteen Thousand Nine Hundred Forty-Eight

Basics

Value: 18947 → 18948 → 18949

Parity: even

Prime: No

Previous Prime: 18947

Next Prime: 18959

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 1579

Divisors: 1, 2, 3, 4, 6, 12, 1579, 3158, 4737, 6316

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101000000100

Octal: 45004

Duodecimal: AB70

Hexadecimal: 4a04

Square: 359026704

Square Root: 137.65173446055812

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

Numbers that are the sum of eight fourth powers in eight or more ways. A345583

Numbers that are the sum of eight fourth powers in exactly eight ways. A345840

a(n) = (2·n³ + 9·n² + n + 24) / 6. A160805

a(n) is the minimal permanent of an n X n matrix using the integers 0 to n² - 1. A358486

Numerators of continued fraction convergents to sqrt(133). A41242

Number of n X n symmetric 0-1 matrices where rows are sorted lexicographically and row sums are nondecreasing. A351158

Number of n-step self-avoiding walks on a line, where step X skips X - 1 spaces. A175941

Numbers n such that prime(n) and φ(n) have the same decimal digits. A243462

Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2 or 3. A257065

Taxicab, taxi-cab or Hardy-Ramanujan numbers: the smallest number that is the sum of 2 positive integral cubes in n ways. A11541