6174

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Number

$6174$ (six thousand, one hundred and seventy-four) is:

$2 \times 3^2 \times 7^3$

Kaprekar's constant: The terminal number of Kaprekar's process when applied to a positive integer with $4$ digits, not all of which are equal.

The $1068$th harshad number:

$6174 = 343 \times 18 = 343 \times \paren {6 + 1 + 7 + 4}$

Also see

• Definition:Kaprekar's Constant

• Previous  ... Next: Harshad Number

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $6174$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $6174$