Properties of the Number 20432

Twenty Thousand Four Hundred Thirty-Two

Basics

Value: 20431 → 20432 → 20433

Parity: even

Prime: No

Previous Prime: 20431

Next Prime: 20441

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 1277

Divisors: 1, 2, 4, 8, 16, 1277, 2554, 5108, 10216, 20432

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100111111010000

Octal: 47720

Duodecimal: B9A8

Hexadecimal: 4fd0

Square: 417466624

Square Root: 142.9405470816451

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

Expansion of ∏_n>0 ((1-xⁿ)/(1+xⁿ))^n² in powers of x. A285988

Number of permutations of 1..n with the sum of squared adjacent differences <= (n-1)*n*(n+1)/6. A180072

Number of right triangles on a (n+1) X 4 grid. A189808

Expansion of g.f. Product((1+xⁱ)/(1-xⁱ),i=1..n-1)/(1-xⁿ), with n = 6. A91774

Numbers k such that if P = 10·k²+1, then P, P+6, P+12 and P+18 are all primes. A92446

Numbers k such that the continued fraction for sqrt(k) has period 93. A20432

Number of nX5 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281762