Properties of the Number 54920

Fifty-Four Thousand Nine Hundred Twenty

Basics

Value: 54919 → 54920 → 54921

Parity: even

Prime: No

Previous Prime: 54919

Next Prime: 54941

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 1373

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1373, 2746

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101011010001000

Octal: 153210

Duodecimal: 27948

Hexadecimal: d688

Square: 3016206400

Square Root: 234.35016535091245

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

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0. A265679

Row sums of triangle A067330; also of triangle A067418. A67988

A 2nd order recursion: a(1)=a(2)=1, a(n) = prime(a(n-2)) + π(a(n-1)) = A000040(a(n-2)) + A000720(a(n-1)). A82095

Number of acyclic tertiary alcohols with n carbon atoms. A5956

Number of nX3 arrays containing 3 copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0. A265678

Number of 5Xn arrays containing n copies of 0..5-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0. A265682

Number of connected unlabeled reflexive relations with n nodes such that complement is also connected. A54920