155
Everything about the number 155 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 155
| Nominal | 155 |
| Cardinal | one hundred fifty-five |
| Ordinal | 155th |
| This number as US currency | one hundred fifty-five dollars |
Properties (and some facts) of 155
| Is 155 an odd number? | 155 is an odd number |
| Is 155 an even number? | 155 is not an even number |
| Is 155 a palindrome? | 155 is not a palindrome |
| Is 155 a triangle number? | 155 is not a triangle number |
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155 in other bases
| Base 2 (Binary) | 10011011 |
| Base 3 (Ternary) | 12202 |
| Base 4 (Quaternary) | 2123 |
| Base 5 (Quinary) | 1110 |
| Base 6 (Senary) | 415 |
| Base 8 (Octal) | 233 |
| Base 12 (Duodecimal) | 10B |
| Base 16 (Hexadecimal) | 9B |
| Base 20 (Vigesimal) | 7F |
Primes and factors tests for 155
| Is 155 a prime number? | 155 is not a prime number |
| Is 155 a perfect number? | 155 is not a perfect number |
| Is 155 a Mersenne prime? | 155 is not a Mersenne prime |
| Is 155 a Fermat prime? | 155 is not a Fermat prime |
| Is 155 a Fibonacci prime? | 155 is not a Fibonacci prime |
| Is 155 a partition prime? | 155 is not a partition prime |
| Is 155 a Pell prime? | 155 is not a Pell prime |
| Prime Factors | Prime factors of 155 |
155 in other numeral systems
| 155 in Roman numerals | CLV |
| 155 in Chinese numerals | 壹佰伍拾伍 |
| 155 in Babylonian numerals |   |
| 155 in Egyptian numerals | 𓍢𓎊𓏾 |
Roots and squares for 155
| Is 155 a square number? | 155 is not a square number |
| Is 155 a cube number? | 155 is not a cube number |
| Square root of 155 | 12.449899597989 |
| Cube root of 155 | 5.3716853549448 |
Recreational math for 155
| Number 155 reversed | 551 |
| Sum of the digits | 11 |
| Number of digits | 3 |
Arithmetic tables for 155
Other pages about 155
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