Properties of the Number 47081

Forty-Seven Thousand Eighty-One

Basics

Value: 47080 → 47081 → 47082

Parity: odd

Prime: No

Previous Prime: 47059

Next Prime: 47087

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 23 ² × 89

Divisors: 1, 23, 89, 529, 2047, 47081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011011111101001

Octal: 133751

Duodecimal: 232B5

Hexadecimal: b7e9

Square: 2216620561

Square Root: 216.9815660373019

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

Partial sum of centered tetrahedral numbers A005894. A132366

Number of divisors of 240ⁿ. A103532

Numbers m > 1 such that every prime divisor p of m satisfies s_p(m) = p. A324458

Number of double palindrome structures of length n using exactly two different symbols. A328688

a(n) = AR(n) is the total number of aperiodic k-reverses of n. A180322

The maximal norm of an additively indecomposable element in Shanks' simplest cubic field Q[x]/(x³ - n·x² - (n+3)*x - 1). A387575

Second differences of sequence A160644. A160648

a(n) is the smallest number m such that τ(m - 1) = τ(m + 1) = τ(m) + n or 0 if no such m exists, where τ(k) = A000005(k). A350934

Numbers k such that the concatenation of k with 4·k gives a square. A115535

Numbers k such that 3^k-1 == 2^k-1 ≠= 1 (mod k). A285300