Properties of the Number 61424

Sixty-One Thousand Four Hundred Twenty-Four

Basics

Value: 61423 → 61424 → 61425

Parity: even

Prime: No

Previous Prime: 61417

Next Prime: 61441

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 11 × 349

Divisors: 1, 2, 4, 8, 11, 16, 22, 44, 88, 176

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110111111110000

Octal: 167760

Duodecimal: 2B668

Hexadecimal: eff0

Square: 3772907776

Square Root: 247.8386571945547

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 both k and k+1 are abundant. A96399

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2. A264217

Numbers k such that both σ(k) >= 2·k-1 and σ(k+1) >= 2*(k+1)-1. A103289

A symmetrical triangle sequence: T(n, k) = q^k + q^n-k - qⁿ, with q=4. A176227

Numbers k such that both k and k+1 are Zumkeller numbers (A083207). A328327

Index of first occurrence of -n in A000319, or -1 if -n never appears there. A381231

Coefficient of xⁿ in the expansion of 1 / ( (1-x) * (1-x-x²) )^2·n. A372460

Numbers k such that each of k and k+1 is either a practical number (A005153) or an almost practical number (A174533). A387654

Number of n X 2 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order. A241073

Number of (1+1) X (n+1) arrays of permutations of 0..n·2+1 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2. A264218