Properties of the Number 27775

Twenty-Seven Thousand Seven Hundred Seventy-Five

Basics

Value: 27774 → 27775 → 27776

Parity: odd

Prime: No

Previous Prime: 27773

Next Prime: 27779

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 11 × 101

Divisors: 1, 5, 11, 25, 55, 101, 275, 505, 1111, 2525

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110001111111

Octal: 66177

Duodecimal: 140A7

Hexadecimal: 6c7f

Square: 771450625

Square Root: 166.65833312498958

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 octahedral numbers (crystal ball sequence for cubic lattice). A1845

a(n) = A063997(n)/4. A88406

Numbers which can be expressed as the product of numbers made of only fives. A161143

Total number of parts of multiplicity 3 in all partitions of n. A117524

Low temperature series for spin-1/2 Ising partition function on 5D simple cubic lattice. A30047

a(n) = 3600·n² - 1601·n + 178. A157853

a(n) = A131766(n) / 18. A131871

Terms in A046034 which are pairwise products of terms in A046034. A153446

a(n) = n²*(1+n)*(1+n²)/4. A328994

Period of the Lucas sequence A000032 mod n. A106291