Properties of the Number 87521

Eighty-Seven Thousand Five Hundred Twenty-One

Basics

Value: 87520 → 87521 → 87522

Parity: odd

Prime: No

Previous Prime: 87517

Next Prime: 87523

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 12503

Divisors: 1, 7, 12503, 87521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010111100001

Octal: 252741

Duodecimal: 42795

Hexadecimal: 155e1

Square: 7659925441

Square Root: 295.8394835041462

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 ordered triples (w,x,y) with all terms in {-n, ..., -1, 1, ..., n} and 5w + x + y > 0. A211630

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0100-1111-0100 pattern in any orientation. A146377

Smallest prime p such that the prime signature of p+1 has not occurred earlier. A87521