十: On banknotes and official documents, the numeral "ten" is often represented by the Chinese character "拾" in its formal written form.
三: meaning to think thrice, or deep thought. acting after thinking thrice, leads to smooth and successful endeavors, earning the trust and confidence of many.
Meaning: In Chinese culture, the number thirteen is often considered auspicious, symbolizing completeness and fulfillment, such as the sixty-four hexagrams in the 'Book of Changes' derived from the eight trigrams, which are based on the three powers of yin and yang. Thirteen is also used to represent the completeness and diversity of things.