Properties of the Number 47392

Forty-Seven Thousand Three Hundred Ninety-Two

Basics

Value: 47391 → 47392 → 47393

Parity: even

Prime: No

Previous Prime: 47389

Next Prime: 47407

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 1481

Divisors: 1, 2, 4, 8, 16, 32, 1481, 2962, 5924, 11848

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100100100000

Octal: 134440

Duodecimal: 23514

Hexadecimal: b920

Square: 2246001664

Square Root: 217.69703718700444

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

First 5-digit number to appear n times in the decimal expansion of π. A277171

E.g.f. satisfies: A(x) = ∑_n>=0 xⁿ/n! * A(x)ⁿ⁽ⁿ⁺¹/2). A155805

Number of triangular regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 4. A332595

Triangle, read by rows, where T(n,k) = T(n,k-1) + n·T(n-1,k-1) for n>0 and k>0, with T(n,0) = T(n-1,n-1) for n>0 and T(0,0) = 1. A132007

Number of aperiodic necklaces (Lyndon words) with k<=5 black beads and n-k white beads. A277629

Number of homogeneous primitive partition identities of degree 6 with largest part n. A7344

Powers of fifth root of 17 rounded down. A18162

Powers of fifth root of 17 rounded to nearest integer. A18163

Number of compositions (ordered partitions) of n into nonprime squarefree parts (A000469). A290137

E.g.f. satisfies: A(x) = ∑_n>=0 xⁿ/n! * A(x)^n(n-1/2). A155804