Properties of the Number 27240

Twenty-Seven Thousand Two Hundred Forty

Basics

Value: 27239 → 27240 → 27241

Parity: even

Prime: No

Previous Prime: 27239

Next Prime: 27241

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 227

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101001101000

Octal: 65150

Duodecimal: 13920

Hexadecimal: 6a68

Square: 742017600

Square Root: 165.04544828622207

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

Triangular array formed from successive differences of factorial numbers. A47920

Euler's difference table: triangle read by rows, formed by starting with factorial numbers (A000142) and repeatedly taking differences. T(n,n) = n!, T(n,k) = T(n,k+1) - T(n-1,k). A68106

3rd differences of factorial numbers. A1565

Triangle T[n,m]: T[n,-1] = 0; T[0,0] = 0; T[n,0] = n·n!; T[n,m] = T[n,m-1] - T[n-1,m-1]. A61312

Difference triangle of factorial numbers read by upward diagonals. A116853

Number of edges among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes when each pair of points is connected by a circle and where the points lie at the ends of the circles' diameter. A362235

a(n) is a non-palindromic composite located between twin primes whose reverse, which is less than it, is also located between twin primes. A103741

Triangle of rank k of permutations of {1,2,...,n}. A134830

a(n) = 1728·n - 408. A157266

Sixth column of Euler's difference table in A068106. A280425