Properties of the Number 27802

Twenty-Seven Thousand Eight Hundred Two

Basics

Value: 27801 → 27802 → 27803

Parity: even

Prime: No

Previous Prime: 27799

Next Prime: 27803

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 13901

Divisors: 1, 2, 13901, 27802

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110010011010

Octal: 66232

Duodecimal: 1410A

Hexadecimal: 6c9a

Square: 772951204

Square Root: 166.73931749890306

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 having depth 1; see Comments. A237685

Number of noncrossing rooted trees with n nodes on a circle that do not have leaves at level 1. A23053

Integers which can be written in exactly three ways as sum of two distinct nonzero pentagonal numbers. A333013

Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges and k leaves at level 1. A101371

Position of first repeat of the opening sequence of length n occurring after the first repeat of the opening sequence of length n-1 in the Kolakoski sequence (A000002). A74300

Numbers k such that the continued fraction for sqrt(k) has period 81. A20420

Erroneous version of A309982. A6775

Round(226*φⁿ). A80106

a(n) = 5*(n+1)*binomial(n+4,6). A27802