Properties of the Number 53920

Fifty-Three Thousand Nine Hundred Twenty

Basics

Value: 53919 → 53920 → 53921

Parity: even

Prime: No

Previous Prime: 53917

Next Prime: 53923

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁵ × 5 × 337

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101001010100000

Octal: 151240

Duodecimal: 27254

Hexadecimal: d2a0

Square: 2907366400

Square Root: 232.20680437919987

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

Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an odd sum (0<=k<=n). A 2-composition of n is a nonnegative matrix with two rows, such that each column has at least one nonzero entry and whose entries sum up to n. A181308

a(1) = 1; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2·a(i) nor ∑_j=1..n-1 ( b_j*a(j) ) where 0 < i < n, b_j = 0 or 1. A331800

Number of graphs with n nodes that are chordal and are K₄ free. A243788

Numbers k such that k² contains only digits {2,3,9}. A53920

Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors). A208048

Number of (4+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8. A252619