98 (number)

← 97 98 99 →
← 90 91 92 93 94 95 96 97 98 99 → List of numbers Integers ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	ninety-eight
Ordinal	98th (ninety-eighth)
Factorization	2 × 72
Divisors	1, 2, 7, 14, 49, 98
Greek numeral	ϞΗ´
Roman numeral	XCVIII, xcviii
Binary	11000102
Ternary	101223
Senary	2426
Octal	1428
Duodecimal	8212
Hexadecimal	6216

98 (ninety-eight) is the natural number following 97 and preceding 99.

In mathematics

98 is:

• a Wedderburn–Etherington number ^[1]
• The Jonk Prime
• a nontotient
• a number of non-isomorphic set-systems of weight 7

In other fields

European route E98

Ninety-eight is:

• 10-98 code in police code means "Assignment Completed"
• The international calling code for Iran

References

1. "Sloane's A001190 : Wedderburn-Etherington numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. 6 January 2026. Retrieved 6 January 2026.