Properties of the Number 16540

Sixteen Thousand Five Hundred Forty

Basics

Value: 16539 → 16540 → 16541

Parity: even

Prime: No

Previous Prime: 16529

Next Prime: 16547

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 827

Divisors: 1, 2, 4, 5, 10, 20, 827, 1654, 3308, 4135

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000010011100

Octal: 40234

Duodecimal: 96A4

Hexadecimal: 409c

Square: 273571600

Square Root: 128.6079313261822

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

Numbers n such that Bernoulli number B_n has denominator 330. A272183

Number of 1-dimensional sandpiles with n grains. A186085

Numbers k such that 2^k + 27 is prime. A157007

Greatest number m such that the fractional part of (3/2)^A153663(n) >= 1-(1/m). A153667

The 240-degree spoke (or ray) of a hexagonal spiral of Ulam. A244805

Sum of numbers in the n-th antidiagonal of the reciprocity array of 3. A259583

Number of partitions of n for which (number of occurrences of the least part) > (number of occurrences of greatest part). A236544

Expansion of ∏_k>=1 (1-x^k)^(-1^k*k²). A307460

Number of edges in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer y coordinates y = 1, 2, ...n. A392444

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)², where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences. A296258