Properties of the Number 87872

Eighty-Seven Thousand Eight Hundred Seventy-Two

Basics

Value: 87871 → 87872 → 87873

Parity: even

Prime: No

Previous Prime: 87869

Next Prime: 87877

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ⁶ × 1373

Divisors: 1, 2, 4, 8, 16, 32, 64, 1373, 2746, 5492

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101011101000000

Octal: 253500

Duodecimal: 42A28

Hexadecimal: 15740

Square: 7721488384

Square Root: 296.4321170183825

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

Primes of the form (4·k + 3)² + (4·k + 2)² where k=0,1,2,3,... A87872

Number of (n+1)X9 binary arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace. A185768

Minimum number of steps to reach n by repeated doubling and/or digit reversal starting from 1, or -1 if n cannot be reached. A385194