Properties of the Number 87864

Eighty-Seven Thousand Eight Hundred Sixty-Four

Basics

Value: 87863 → 87864 → 87865

Parity: even

Prime: No

Previous Prime: 87853

Next Prime: 87869

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 7 × 523

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10101011100111000

Octal: 253470

Duodecimal: 42A20

Hexadecimal: 15738

Square: 7720082496

Square Root: 296.41862289674043

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

Irregular triangle read by rows: T(n,k) is the number of endofunctions on [n] whose fourth-smallest component has size exactly k; n >= 0, 0 <= k <= max(0,n-3). A350276

a(n) = 2·n*(2·n² + 1). A61804

Bishops on an n X n board (see Robinson paper for details). A5633

a(n) = (6ⁿ+2ⁿ-2·3ⁿ)*(n-1)!/2. A381219

Primes generated from A039726. A87864