Properties of the Number 4090

Four Thousand Ninety

Basics

Value: 4089 → 4090 → 4091

Parity: even

Prime: No

Previous Prime: 4079

Next Prime: 4091

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 409

Divisors: 1, 2, 5, 10, 409, 818, 2045, 4090

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111111111010

Octal: 7772

Duodecimal: 244A

Hexadecimal: ffa

Square: 16728100

Square Root: 63.953107821277925

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

Cake numbers: maximal number of pieces resulting from n planar cuts through a cube (or cake): C(n+1,3) + n + 1. A125

a(n) = 4ⁿ - n. A24037

a(n) = 2·n² + n - 5. A100040

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s. A297720

Binomial transform of [1,1,7,1,7,1,7,1,...]. A131130

Numbers that have 8 terms in their Zeckendorf representation. A179248

Noncongruent squarefree numbers n with A248395(n)/d(n) = -2, where d(n) = A000005(n). A248406

Greatest number (in decimal representation) with n nonprime substrings in binary representation (substrings with leading zeros are considered to be nonprime). A217112

Positions of 2's in A264977; positions of 3's in A277330. A277712

a(n) = T(n,n-5), array T as in A055807. A55810