070

070 is a natural number. In decimal notation, it equals 70. As written with a leading zero it can also appear as a fixed-width string or as part of a formatted code; the leading zero itself has no mathematical value but is used to denote width or to indicate octal in certain programming contexts.

Mathematically, 70 is composite with prime factorization 2 × 5 × 7. Its divisors are 1, 2, 5, 7, 10, 14, 35, and 70. It is a Harshad number since 70 is divisible by the sum of its digits (7 + 0 = 7; 70 ÷ 7 = 10). In Roman numerals, 70 is written as LXX. In other bases, 70 decimal equals 1000110 in binary, 106 in octal, and 46 in hexadecimal.

In computing contexts, a numeric literal with a leading zero can be interpreted as octal in some languages; for example, 070 may be interpreted as octal, equaling decimal 56 in those contexts. In modern Python 3, however, such notation is invalid and can raise a syntax error.

Telecommunications: 070 can appear as a prefix in national numbering plans. In certain systems, 070 is reserved for specific services, such as IP telephony or mobile numbers, depending on the country. The exact allocation and rules for 070 vary by national numbering plan and regulatory authority.

Overall, 070 serves as both a straightforward decimal value and a marker of contextual meaning in fields such as programming and telephony, where prefixes and leading zeros convey special significance.