Properties of the Number 27144

Twenty-Seven Thousand One Hundred Forty-Four

Basics

Value: 27143 → 27144 → 27145

Parity: even

Prime: No

Previous Prime: 27143

Next Prime: 27179

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 13 × 29

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 13, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110101000001000

Octal: 65010

Duodecimal: 13860

Hexadecimal: 6a08

Square: 736796736

Square Root: 164.75436261295178

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

Position of first zero in the n-th differences of the composite numbers (A002808), or 0 if it does not appear. A377037

T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281326

Number of strict n-node animals on cubic lattice. A7193

Numbers k for which σ(k) >= 2·k and (σ(k) - 2·k) AND k = k, where AND is bitwise-and, A004198. A388026

Number of n-bead necklaces labeled with numbers 1..7 not allowing reversal, with no adjacent beads differing by more than 1. A208776

a(n) is the largest integer whose cube has n digits and first digit 1, except that a(2)=2. A83378

Numbers n such that triangular(n) + triangular(2·n) is a triangular number. A225785

Number of steps between two valleys at height 0 in the infinite Dyck path in which the k-th ascending line segment has A141285(k) steps and the k-th descending line segment has A194446(k) steps, k >= 1. A233968

Indices k such that A019326(k)=φ[k](8) is prime, where φ is a cyclotomic polynomial. A138938

Numbers m such that k·m = ∑_{j∣m, j < m} σ(j), where k >= 1 is an integer. A224488