103 (number)

103 (one hundred [and] three) is the natural number following 102 and preceding 104.

← 102 104 → 103
← 100 101 102 103 104 105 106 107 108 109 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	one hundred [and] three
Ordinal	103rd (one hundred [and] third)
Numeral system	103
Factorization	prime
Prime	27th
Divisors	1, 103
Roman numeral	CIII
Binary	11001112
Octal	1478
Duodecimal	8712
Hexadecimal	6716

In mathematics

One hundred [and] three is the 27th prime number. The previous prime is 101, making them both twin primes. It is also a happy number.

103 is a strictly non-palindromic number.

In science

• The atomic number of lawrencium, an actinide.

In other fields

When "and" is required for the number name, 103 is the smallest number requiring 18 letters when spelled out in English.

One hundred three is also:

• The emergency telephone number for ambulance in Belarus, India and Ukraine

See also

• List of highways numbered 103
• 103rd Street (disambiguation), multiple rapid transit stations

References

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
• Sam's Piano's song: the "103 Song"
• Mayke was hit by bus 103