Properties of the Number 28897

Twenty-Eight Thousand Eight Hundred Ninety-Seven

Basics

Value: 28896 → 28897 → 28898

Parity: odd

Prime: No

Previous Prime: 28879

Next Prime: 28901

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 11 × 37 × 71

Divisors: 1, 11, 37, 71, 407, 781, 2627, 28897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000011100001

Octal: 70341

Duodecimal: 14881

Hexadecimal: 70e1

Square: 835036609

Square Root: 169.99117624159203

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

Centered 32-gonal numbers. A195315

a(n) = number of (s(0), s(1), ..., s(n)) such that s(i) is an integer, s(0) = 0, |s(1)| = 1, |s(i) - s(i-1)| <= 1 for i >= 2, s(n) = 3. Also a(n) = T(n,n-3), where T is the array defined in A025177. A25181

Products of three distinct strong primes. A363782

Expansion of g.f. x*(1 - x)*(1 + x)/(1 - x - 11·x² - x³ + x⁴). A171068

Heinz numbers of integer partitions into relatively prime parts whose reciprocal sum is the reciprocal of an integer. A316901

If n = Sum c_i 10ⁱ then a(n) = Sum c_i 2ⁱ. A28897

T(n,k)=Number of length n+k+2 0..k arrays with every value 0..k appearing at least once in every consecutive k+3 elements, and new values 0..k introduced in order. A242322