Properties of the Number 54621

Fifty-Four Thousand Six Hundred Twenty-One

Basics

Value: 54620 → 54621 → 54622

Parity: odd

Prime: No

Previous Prime: 54617

Next Prime: 54623

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 7 × 17 ²

Divisors: 1, 3, 7, 9, 17, 21, 27, 51, 63, 119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101010101011101

Octal: 152535

Duodecimal: 27739

Hexadecimal: d55d

Square: 2983453641

Square Root: 233.71136044274783

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 k such that k·Fibonacci(k) + 1 is prime. A134313

Weight distribution of nonlinear binary (36,2¹⁸,8) code. A30030

Numbers n such that σ(n - φ(n)) = φ(n + φ(n)). A74887

a(n) is the smallest positive integer such that a(n)+10^k is prime for 1 <= k <= n. A124116

G.f. satisfies: A(x) = 1/(1 - x/A(-x·A(x)⁹)³). A213232

Number of ways to color vertices of a heptagon using <= n colors, allowing only rotations. A54621

Array read by antidiagonals: T(n,m) is the number of nonisomorphic binary n X m matrices with 3 1's per column under row and column permutations (m >= 3). A305027