Compare 161980 vs 161983
| Property | 161980 | 161983 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 22 × 51 × 71 × 131 × 891 | 1619831 |
| Prime factorization | 2 × 2 × 5 × 7 × 13 × 89 | 161983 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 89, 91, 130, 140, 178, 182, 260, 356, 364, 445, 455, 623, 890, 910, 1157, 1246, 1780, 1820, 2314, 2492, 3115, 4628, 5785, 6230, 8099, 11570, 12460, 16198, 23140, 32396, 40495, 80990, 161980 | 1, 161983 |
| Number of properties | 0 | 9 |
| Emirps | 3271st | |
| Happy primes | 2300th | |
| Harmonic primes | 5569th | |
| Isolated primes | 11208th | |
| Long primes | 5545th | |
| Primes | 14851st | |
| Sexy primes (2nd member) | 3595th | |
| Sexy prime triplets (3rd member) | 741st | |
| Super primes | 1740th | |
| Roman numberals | ||
| Base 2 | 1001111000101111002 | 1001111000101111112 |
| Base 3 | 220200120213 | 220200121013 |
| Base 4 | 2132023304 | 2132023334 |
| Base 5 | 201404105 | 201404135 |
| Base 6 | 32455246 | 32455316 |
| Base 7 | 12431507 | 12431537 |
| Base 8 | 4742748 | 4742778 |
| Base 9 | 2661679 | 2661719 |
| Base 10 | 16198010 | 16198310 |
| Base 11 | 10077511 | 10077811 |
| Base 12 | 798a412 | 798a712 |
| Base 13 | 5896013 | 5896313 |
| Base 14 | 4306014 | 4306314 |
| Base 15 | 32eda15 | 32edd15 |
| Base 16 | 278bc16 | 278bf16 |