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# 786 (number)

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### 786 (number)

 ← 785 786 787 →
Cardinal seven hundred eighty-six
Ordinal 786th
(seven hundred and eighty-sixth)
Factorization 2 × 3 × 131
Roman numeral DCCLXXXVI
Binary 11000100102
Ternary 10020103
Quaternary 301024
Quinary 111215
Senary 33506
Octal 14228
Duodecimal 55612
Vigesimal 1J620
Base 36 LU36

786 is the integer coming after 785 and before 787.

## In mathematics

786 is a sphenic number. 50 can be partitioned into powers of two in 786 different ways (sequence A000123 in OEIS).

786 might be the largest n for which the value of the central binomial coefficient {}_{2n}\!C_n is not divisible by an odd prime squared. If there is a larger such number, it would have to be at least 157450 (see ).

## In religion

"786" is the total value of the letters of "Bismillah al-Rahman al-Rahim". In Arabic there are two methods of arranging letters. One method is the most common method known as the alphabetical method. Here we begin with Alif, ba, ta, tha etc. The other method is known as the Abjad method or ordinal method. In this method each letter has an arithmetic value assigned to it from one to one thousand. The letters are arranged in the following order: Abjad, Hawwaz, Hutti, Kalaman, Sa'fas, Qarshat, Sakhaz, Zazagh. This arrangement was done, most probably in the 3rd century of Hijrah during the 'Abbasid period, following other Semitic languages such as Phoenician, Aramaic, Hebrew, Syriac, Chaldean etc.

If you take the numeric values of all the letters of the Basmalah, according to the Abjad order, the total will be 786. In the Indian subcontinent the Abjad numerals became quite popular. Some people, mostly in India and Pakistan, use 786 as a substitute for Bismillah. They write this number to avoid writing the name of Allah or the Qur'anic ayah on ordinary papers. This tradition is not from the time of the Prophet or his Sahabah. It developed much later, perhaps during the later 'Abbasid period. We do not know of any reputable Imams or Jurists who used this number instead of the Bismillah.

## Area code

786 is a United States area code in Miami-Dade County. As an overlay area code, it shares geography with other codes in order to increase the area's pool of usable numbers, bringing ten-digit dialing to the Florida Keys.