Properties of the Number 15682

Fifteen Thousand Six Hundred Eighty-Two

Basics

Value: 15681 → 15682 → 15683

Parity: even

Prime: No

Previous Prime: 15679

Next Prime: 15683

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 7841

Divisors: 1, 2, 7841, 15682

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110101000010

Octal: 36502

Duodecimal: 90AA

Hexadecimal: 3d42

Square: 245925124

Square Root: 125.22779244241272

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

Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 2 X 4 which is symmetric after a rotation by 180 degrees. A123829

Sum of 12 nonzero 8th powers. A3390

Self-convolution of (1, p(1), p(2), ...). A23626

a(0) = 1, a(n) = 20·n² + 2 for n>0. A10010

Integers that are the arithmetic mean of 1000 consecutive primes. A123078

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 710", based on the 5-celled von Neumann neighborhood. A273423

Expansion of e.g.f. theta₃^-3/2. A15682

G.f. satisfies: A(x)³ = x + A(x·A(x)²)². A240997

Number of (n+4) X 9 0..1 matrices with each 5 X 5 subblock idempotent. A224687

a(n) = n⁹+9n. A180359