Compare 21604 vs 21613
| Property | 21604 | 21613 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 111 × 4911 | 216131 |
| Prime factorization | 2 × 2 × 11 × 491 | 21613 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 11, 22, 44, 491, 982, 1964, 5401, 10802, 21604 | 1, 21613 |
| Number of properties | 0 | 8 |
| Additive primes | 1126th | |
| Cousin primes (1st member) | 370th | |
| Left-truncatable primes | 172nd | |
| Lucky primes | 392nd | |
| Primes | 2428th | |
| Prime triplets (2nd member) | 185th | |
| Pythagorean primes | 1204th | |
| Twin primes (2nd member) | 369th | |
| Roman numberals | ||
| Base 2 | 1010100011001002 | 1010100011011012 |
| Base 3 | 10021220113 | 10021221113 |
| Base 4 | 111012104 | 111012314 |
| Base 5 | 11424045 | 11424235 |
| Base 6 | 2440046 | 2440216 |
| Base 7 | 1166627 | 1200047 |
| Base 8 | 521448 | 521558 |
| Base 9 | 325649 | 325749 |
| Base 10 | 2160410 | 2161310 |
| Base 11 | 1526011 | 1526911 |
| Base 12 | 1060412 | 1061112 |
| Base 13 | 9aab13 | 9ab713 |
| Base 14 | 7c3214 | 7c3b14 |
| Base 15 | 660415 | 660d15 |
| Base 16 | 546416 | 546d16 |