Properties of the Number 40222

Forty Thousand Two Hundred Twenty-Two

Basics

Value: 40221 → 40222 → 40223

Parity: even

Prime: No

Previous Prime: 40213

Next Prime: 40231

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 13 ² × 17

Divisors: 1, 2, 7, 13, 14, 17, 26, 34, 91, 119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1001110100011110

Octal: 116436

Duodecimal: 1B33A

Hexadecimal: 9d1e

Square: 1617809284

Square Root: 200.55423206703966

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 even-length integer compositions of 2n whose half-alternating sum is 0. A357642

a(n) = n*(11·n² - 5)/6. A4467

a(n) = number of subsets of {1, 2, ..., n} that represent the first k divisors of m for some positive integers m and 1 <= k <= A000005(m). A378314

Ordered product of the sides of primitive Pythagorean triangles divided by 60. A81752

Difference between the square root of n-th square triangular number and n-th λ number given by the recurrence f(n) = 2f(n-1) + f(n-2), f(1) = 1, f(2)= 2. A113450

Catalan number analogs for A099927, the generalized binomial coefficients for Pell numbers (A000129). A256799

One half of numbers representable in at least two different ways as sums of four nonvanishing cubes. See A259060 for these numbers and their representations. A261241

Numbers k such that 6·R_k + 10^k - 5 is prime, where R_k = 11...11 is the repunit (A002275) of length k. A259118

G.f. A(x) satisfies: [xⁿ] (1+x)⁽ⁿ⁺¹²) / A(x) = 0 for n>0. A304193

Continued fraction for sqrt(238). A40222