Properties of the Number 28402

Twenty-Eight Thousand Four Hundred Two

Basics

Value: 28401 → 28402 → 28403

Parity: even

Prime: No

Previous Prime: 28393

Next Prime: 28403

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 11 × 1291

Divisors: 1, 2, 11, 22, 1291, 2582, 14201, 28402

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111011110010

Octal: 67362

Duodecimal: 1452A

Hexadecimal: 6ef2

Square: 806673604

Square Root: 168.5289292673516

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 partitions of n with more even parts than odd parts. A108949

Number of Dyck paths of knight moves. A5221

a(n) = s(1)*s(n) + s(2)*s(n-1) + ... + s(k)*s(n+1-k), where k = floor((n+1)/2), s = (odd natural numbers). A24598

a(n) = n*(8·n² + 1)/3. A143166

n times π(n) is a palindrome, where π(n) = PrimePi(n) = A000720(n). A116054

a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = floor(n/2), s = (odd natural numbers). A25112

Let P(n) = primorial(n) = A002110(n); a(n) is the number of primes q < P(n) such that P(n) - q is also prime and q²==1 (mod P(n)). A336093

Number of types of Boolean functions of n variables under a certain group. A28402