Properties of the Number 27769

Twenty-Seven Thousand Seven Hundred Sixty-Nine

Basics

Value: 27768 → 27769 → 27770

Parity: odd

Prime: No

Previous Prime: 27767

Next Prime: 27773

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 7 × 3967

Divisors: 1, 7, 3967, 27769

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110001111001

Octal: 66171

Duodecimal: 140A1

Hexadecimal: 6c79

Square: 771117361

Square Root: 166.64033125267125

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

Write (sqrt(5)-1)/2 as a binary fraction; read this from left to right and whenever a 1 appears, note the integer formed by reading leftwards from that 1. A99971

Numbers k such that 5·10^k - 9 is prime. A103001

Numerator of constant term in polynomial arising from numerical integration formula. A2669

Shifts 2 places left under the hyperbinomial transform. A89459

Number of (n+2)X(5+2) 0..1 arrays x(i,j) with every row sum{j·x(i,j), j=1..5+2} equal, and every column sum{i·x(i,j), i=1..n+2} equal, with upper left element zero. A232651

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays x(i,j) with every row sum{j·x(i,j), j=1..k+2} equal, and every column sum{i·x(i,j), i=1..n+2} equal, with upper left element zero. A232654

a(n) = (n+1)*binomial(n+1, 9). A27769

Number of length n+3 0..5 arrays with some disjoint pairs in every consecutive four terms having the same sum. A247530