Numbers 710-719

A page of the Numeropedia - the Special Encyclopedia of Numbers

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710

[Phone]   An NANPA/U.S. telephone area code reserves for government emergency telecom service. (NANPA: North American Numbering Plan Administration).

[World]  The ISO country code for South Africa. (ISO-3166).

711

[Phone]   An NANPA/U.S. telephone area code reserves for special functions. This number cannot be used as area code. (NANPA: North American Numbering Plan Administration).

[Phone]   A 7-digit number after an NANPA/U.S. 3-digit area code cannot start with 0nm, 1nm or 8 other 3-digit numbers: 211, 311, 411, 511, 611, 711, 811 and 911.

712

[Math.]  7123 = 360,944,128 = (–360+944+128)3.

713…

714 & 715

[Math.]  510,510 = 2×3×5×7×11×13×17 (first 7 prime numbers)

= 714×715 (2 consecutive numbers)

= 13×21×34×55 (4 consecutive Fibonacci numbers).

715 & 716

[Math.]  A square number 8462 = 715,716, formed by concatenation of 2 consecutive numbers.

716

[Math.]  A square number 8462 = 715,716, formed by concatenation of 2 consecutive numbers.

[World]  The ISO country code for Zimbabwe (was Southern Rhodesia). (ISO-3166).

717

[Math.]

8×8+13 = 77

88×8+13 = 717

888×8+13 = 7117

8888×8+13 = 71117

88,888×8+13 = 711,117

888,888×8+13 = 7,111,117

8,888,888×8+13 = 71,111,117

88,888,888×8+13 = 711,111,117

888,888,888×8+13 = 7,111,111,117

8,888,888,888×8+13 = 71,111,111,117

[Tech.]  Boeing 717 airplane, designed in 1995, a late member in the family of passenger airplane/jetliner models “7n7”: 707, 717, 727, 737, 747, 757, 767, 777, 7E7 and 787.

718…

719

[Math.]  A prime number whose digits are distinct and in the English alphabetical backward consecutive order.

[Math.]  A right-truncatable prime number: self, 71 and 7 are prime numbers.

[Math.]  Circular prime numbers: all 3 numbers 719, 197 and 971 are prime.

710-719

[Library]  Numbers 700-799 are the first 3 digits in Dewey Decimal Classification System call numbers for library books in Fine Arts (Painting, Music, Sport and Photography…). Numbers 710-719 are for books in Landscape Art and Architectures.