Properties of the Number 40743

Forty Thousand Seven Hundred Forty-Three

Basics

Value: 40742 → 40743 → 40744

Parity: odd

Prime: No

Previous Prime: 40739

Next Prime: 40751

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 503

Divisors: 1, 3, 9, 27, 81, 503, 1509, 4527, 13581, 40743

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111100100111

Octal: 117447

Duodecimal: 1B6B3

Hexadecimal: 9f27

Square: 1659992049

Square Root: 201.84895342805223

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

a(1) = 1; a(n) = 3 + n * ∑_k=1..n-1 a(k). A82428

Numbers n such that 8·10ⁿ + 4·R_n - 3 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103079

Continued fraction for sqrt(771). A40743

Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00100101 or 01010101. A261264