30th July, 2025.
Facts about 30.
Adding up the first four square numbers gives exactly 30: 1² + 2² + 3² + 4² = 30. This property makes it a square pyramidal number or a cannonball number.
Interesting Facts:
👉 Tennis Score , In tennis, 30 represents the second point gained in a game.
👉 Roman Numerals , 30 is written as XXX in Roman numerals.
👉 Zinc , The 30th element on the periodic table is Zinc.
👉 Bulgarian and Serbian Alphabets , Both have 30 letters.
👉 International Dialing Code , +30 is the international dialing code for Greece.
👉 Pearl Wedding Anniversary , 30 years of marriage is known as a Pearl Wedding Anniversary.
👉 Tricenarian , Someone between the ages of 30 and 39 is called a tricenarian.
Facts about 30.
Adding up the first four square numbers gives exactly 30: 1² + 2² + 3² + 4² = 30. This property makes it a square pyramidal number or a cannonball number.
Interesting Facts:
👉 Tennis Score , In tennis, 30 represents the second point gained in a game.
👉 Roman Numerals , 30 is written as XXX in Roman numerals.
👉 Zinc , The 30th element on the periodic table is Zinc.
👉 Bulgarian and Serbian Alphabets , Both have 30 letters.
👉 International Dialing Code , +30 is the international dialing code for Greece.
👉 Pearl Wedding Anniversary , 30 years of marriage is known as a Pearl Wedding Anniversary.
👉 Tricenarian , Someone between the ages of 30 and 39 is called a tricenarian.
| 18,000 mlx | |
| 48 | |
| 11 |