17 (number)

← 16 17 18 →
← 10 11 12 13 14 15 16 17 18 19 → List of numbers; Integers; ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	seventeen
Ordinal	17th; (seventeenth)
Numeral system	septendecimal
Factorization	prime
Prime	7th
Divisors	1, 17
Greek numeral	ΙΖ´
Roman numeral	XVII
Binary	100012
Ternary	1223
Senary	256
Octal	218
Duodecimal	1512
Hexadecimal	1116
Hebrew numeral	י"ז
Babylonian numeral	𒌋𒐛

17 (seventeen) is the natural number following 16 and preceding 18. It is a prime number.

Seventeen is the sum of the first four prime numbers.

17 was described at MIT as "the least random number", according to the Jargon File.^[1] This is supposedly because, in a study where respondents were asked to choose a random number from 1 to 20, 17 was the most common choice. This study has been repeated a number of times.^[2]

^ "random numbers". catb.org/.
^ "The Power of 17". Cosmic Variance. Archived from the original on 2008-12-04. Retrieved 2010-06-14.

[1] "random numbers". catb.org/.

[2] "The Power of 17". Cosmic Variance. Archived from the original on 2008-12-04. Retrieved 2010-06-14.

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