Properties of the Number 42775

Forty-Two Thousand Seven Hundred Seventy-Five

Basics

Value: 42774 → 42775 → 42776

Parity: odd

Prime: No

Previous Prime: 42773

Next Prime: 42787

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 29 × 59

Divisors: 1, 5, 25, 29, 59, 145, 295, 725, 1475, 1711

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011100010111

Octal: 123427

Duodecimal: 20907

Hexadecimal: a717

Square: 1829700625

Square Root: 206.82117879946435

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

Denominators of continued fraction convergents to sqrt(151). A41277

Odd numbers k > 1 such that A309906(k-1) < A309906(k) > A309906(k+1) < A309906(k+2) > A309906(k+3). A349938

Terms of A349937 that are not divisible by 3: numbers k > 1 not divisible by 2 or 3 such that A309906(k-1) < A309906(k) > A309906(k+1). A349941

Expansion of the solution of a functional equation. A112482

Denominators of continued fraction convergents to sqrt(918). A42775

Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions 0 and {(m+1)*(m+2)/2-2, m>0} and then taking partial sums, starting with all 1's in row 0. A156628