Number reference
94 explained.
94: ninety-four, composite; factors, prime factorization, roots, binary, hexadecimal, and digit properties.
Identity and representations
- Written form
- ninety-four
- Classification
- composite
- Factors
- 1, 2, 47, 94
- Prime factorization
- 2 × 47
- Square root
- 9.69536
- Cube root
- 4.546836
- Binary
- 1011110
- Octal
- 136
- Hexadecimal
- 5E
- Roman numeral
- XCIV
- Digit sum
- 13
- Digital root
- 4
What makes 94 notable
- Semiprime. 94 = 2 × 47, a product of exactly two primes. That gives it just four divisors, so it splits into equal groups in only two non-trivial ways.
94 in everyday use
Ninety-four is the atomic number of plutonium, the element of the Trinity test and the Nagasaki bomb, first produced at Berkeley in 1940 and named after Pluto to follow uranium and neptunium. In the United States, Interstate 94 runs from Montana to Michigan through Chicago. The 1994 World Cup was the first held in the United States, and Windows 95 arrived the following year.
Ninety-four is 2 × 47 and a Smith number: its digits add to 13, and so do the digits of its prime factors, 2 + 4 + 7. It is a happy number, since 81 + 16 = 97, then 81 + 49 = 130, then 10, then 1. It is a nontotient, and because 47 leaves a remainder of 3 when divided by 4, it is not a sum of two squares. In binary it is 1011110.
Nearby numbers
How to read this page
The factor list shows every way 94 splits into equal whole-number groups — 4 divisors in total. The prime factorisation is the compact form of that same information, and the base conversions restate 94 for contexts that do not use decimal.
Percentage calculator · Fraction calculator · Browse Number Explorer