Properties of the Number 28252

Twenty-Eight Thousand Two Hundred Fifty-Two

Basics

Value: 28251 → 28252 → 28253

Parity: even

Prime: No

Previous Prime: 28229

Next Prime: 28277

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 7 × 1009

Divisors: 1, 2, 4, 7, 14, 28, 1009, 2018, 4036, 7063

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111001011100

Octal: 67134

Duodecimal: 14424

Hexadecimal: 6e5c

Square: 798175504

Square Root: 168.08331267558955

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

a(n) is the concatenation of n and 9n. A9474

Number of 3 X n nonnegative integer matrices with all column sums 3, up to row and column permutation. A58407

a(n) = 36·n² + n. A157324

Triangle read by rows: T(n,k) = number of peakless Motzkin paths of length n containing k subwords of the type uh^ju, dH^jd, or dh^ju for some j>0, where u=(1,1), d=(1,-1) and h=(1,0) (can be easily expressed using RNA secondary structure terminology). A98056

a(n) = 144n² + 2n. A158132

a(n) = 784·n² + 28. A158659

High temperature series for spin-1/2 Ising surface susceptibility on 3-dimensional simple cubic lattice. A3490

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 12. A31690

Number of nondecreasing integer sequences of length 17 with sum zero and sum of absolute values 2n. A158151

Number of examples for Simpson's paradox with data items in [n]. A281614