Properties of the Number 42276

Forty-Two Thousand Two Hundred Seventy-Six

Basics

Value: 42275 → 42276 → 42277

Parity: even

Prime: No

Previous Prime: 42257

Next Prime: 42281

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 13 × 271

Divisors: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1010010100100100

Octal: 122444

Duodecimal: 20570

Hexadecimal: a524

Square: 1787260176

Square Root: 205.61128373705563

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

Icosahedral numbers: a(n) = n*(5·n² - 5·n + 2)/2. A6564

Number of integer partitions of n > 0 such that the least and greatest parts are not both odd (equivalently, their product is even). A391230

Indices k such that 10 plus the k-th triangular number is a perfect square. A154143

Replace the word A214317(n) with its position in A007931. A214318

Number of defective (binary) heaps on n elements from the set {0,1} with exactly one defect. A372628

a(n) = (1/24)*(n + 3)*(3·n³ + 5·n² - 6·n + 16). A290061

Partial sums of A000262. A173227

a(n) = (n + 1)*(6·n² + 15·n + 4)/2. A269232

Numerators of continued fraction convergents to sqrt(664). A42276