Properties of the Number 42506

Forty-Two Thousand Five Hundred Six

Basics

Value: 42505 → 42506 → 42507

Parity: even

Prime: No

Previous Prime: 42499

Next Prime: 42509

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 53 × 401

Divisors: 1, 2, 53, 106, 401, 802, 21253, 42506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011000001010

Octal: 123012

Duodecimal: 20722

Hexadecimal: a60a

Square: 1806760036

Square Root: 206.16983290481662

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

Number of 3 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing. A223839

Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,3,0. A37699

Numbers n such that (n + prime(n)), (n+1 + prime(n+1)), (n+2 + prime(n+2)) and (n+3 + prime(n+3)) are divisible by 5. A107582

Numerators of continued fraction convergents to sqrt(781). A42506