Properties of the Number 87039

Eighty-Seven Thousand Thirty-Nine

Basics

Value: 87038 → 87039 → 87040

Parity: odd

Prime: No

Previous Prime: 87037

Next Prime: 87041

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 19 × 509

Divisors: 1, 3, 9, 19, 57, 171, 509, 1527, 4581, 9671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001111111111

Octal: 251777

Duodecimal: 42453

Hexadecimal: 153ff

Square: 7575787521

Square Root: 295.0237278593029

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

Matrix cube-root of triangle A107717. A107719

a(n) = a(n-1) + 2·a(floor(n/2)) if n > 0, otherwise 1. A58039

First of quadruples of consecutive happy numbers. A194352

a(n) = floor(πⁿ mod n^π). A66434

If n is prime then 1 else 2nd largest prime factor of n. A87039

Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7. A252403