Properties of the Number 63428

Sixty-Three Thousand Four Hundred Twenty-Eight

Basics

Value: 63427 → 63428 → 63429

Parity: even

Prime: No

Previous Prime: 63421

Next Prime: 63439

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 101 × 157

Divisors: 1, 2, 4, 101, 157, 202, 314, 404, 628, 15857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111011111000100

Octal: 173704

Duodecimal: 30858

Hexadecimal: f7c4

Square: 4023111184

Square Root: 251.8491612056709

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 (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7. A252407

Denominators of continued fraction convergents to sqrt(746). A42437

Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7. A252405

Number of (4+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7. A252411

Number of 3 X n 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 2 neighboring 1s. A297300

Number of pairs of consecutive integers x, x+1 such that all prime factors of both·and x+1 are at most the n-th prime. A2071

a(n) is the smallest positive integer of the form n·k/(n+k). A63428