Properties of the Number 47921

Forty-Seven Thousand Nine Hundred Twenty-One

Basics

Value: 47920 → 47921 → 47922

Parity: odd

Prime: No

Previous Prime: 47917

Next Prime: 47933

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 173 × 277

Divisors: 1, 173, 277, 47921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101100110001

Octal: 135461

Duodecimal: 23895

Hexadecimal: bb31

Square: 2296422241

Square Root: 218.908656749796

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 non-Look-and-Say partitions of n. Number of integer partitions of n such that there is no way to choose a disjoint strict integer partition of each multiplicity. A351293

Number of integer solutions to (x₁)² + (x₂)² + ... + (x₈)² <= n. A341397

Number of lattice points inside or on the 8-dimensional hypersphere x₁² + x₂² + x₃² + x₄² + x₅² + x₆² + x₇² + x₈² = 10ⁿ. A373896

Array T(d,n) = number of integer lattice points inside the d-dimensional hypersphere of radius sqrt(n), read by ascending antidiagonals. A122510

Triangle of numbers a(n,k) = number of permutations on n letters containing k 3-sequences (n >= 0, 0<=k<=max(0,n-2)). A47921