Properties of the Number 72442

Seventy-Two Thousand Four Hundred Forty-Two

Basics

Value: 72441 → 72442 → 72443

Parity: even

Prime: No

Previous Prime: 72431

Next Prime: 72461

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 29 × 1249

Divisors: 1, 2, 29, 58, 1249, 2498, 36221, 72442

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001101011111010

Octal: 215372

Duodecimal: 35B0A

Hexadecimal: 11afa

Square: 5247843364

Square Root: 269.15051551130273

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

Expansion of 1/(1 - x - x² + x⁵ + x⁶ - x⁷). A225490

Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252299

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 59. A31647

Least k such that ∑_i=1..k cos(1/sqrt(i)) > n. A72442