Properties of the Number 4087

Four Thousand Eighty-Seven

Basics

Value: 4086 → 4087 → 4088

Parity: odd

Prime: No

Previous Prime: 4079

Next Prime: 4091

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 61 × 67

Divisors: 1, 61, 67, 4087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111111110111

Octal: 7767

Duodecimal: 2447

Hexadecimal: ff7

Square: 16703569

Square Root: 63.92964883369844

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

Products of 2 successive primes. A6094

a(1) = 1; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A33680

Numbers that are products of (at least two) consecutive primes. A97889

Number of integer partitions of n that are empty, have smallest part not dividing all the others, or greatest part not divisible by all the others. A343346

a(1)=2, a(n+1) is the smallest composite number > a(n) with smallest prime factor >= smallest prime factor of a(n). A156759

Number of integer compositions of n that are not the first sums of any composition with no 1's. A391641

a(n) = n⁴ - n - 1. A126423

T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..3 nXk array. A218638

Expansion of 1 / ∏_k>=1 (1-x^k-x^2·k). A162891

a(n) = 2ⁿ - 9. A185346