Properties of the Number 42975

Forty-Two Thousand Nine Hundred Seventy-Five

Basics

Value: 42974 → 42975 → 42976

Parity: odd

Prime: No

Previous Prime: 42967

Next Prime: 42979

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 191

Divisors: 1, 3, 5, 9, 15, 25, 45, 75, 191, 225

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1010011111011111

Octal: 123737

Duodecimal: 20A53

Hexadecimal: a7df

Square: 1846850625

Square Root: 207.3041244162788

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 k + A067666(k) is a square. A386257

a(n) = (2n+1)!! mod (2n)!! where k!! = A006882(k). A306184

The (2ⁿ)-th lucky number. A181383

a(n) = (n+1)!! mod n!!. A227415

Decimal expansion of sqrt(0.121121112...). A42975