Properties of the Number 42236

Forty-Two Thousand Two Hundred Thirty-Six

Basics

Value: 42235 → 42236 → 42237

Parity: even

Prime: No

Previous Prime: 42227

Next Prime: 42239

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 10559

Divisors: 1, 2, 4, 10559, 21118, 42236

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011111100

Octal: 122374

Duodecimal: 20538

Hexadecimal: a4fc

Square: 1783879696

Square Root: 205.5139897914495

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

Triangle T(n,k) = P(n,k)/2, n >= 2, 1 <= k < n, of one-half of number of permutations of 1..n such that the differences have k runs with the same signs. A8970

One half of the number of permutations of [n] such that the differences have three runs with the same signs. A352

Numbers n with property that n² is a sum of some 120 successive primes. A166262

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 0, 1), (0, 1, 0), (1, -1, -1)}. A149827

Numerators of continued fraction convergents to sqrt(644). A42236