• [[square]]: 169

• [[square root]]: 3.6056

• [[cube]]: 2197

• [[cube root]]: 2.3513

• [[natural log]] (ln): 2.5649

• [[base-10 log]] (log10): 1.1139

• [[base-2 log]] (log2): 3.7004

[[13]] is prime.

Primes up to 13: 2, 3, 5, 7, 11, 13.

hex(1) is 1.

hex(2) is 7.

hex(3) is 19.

hex(4) is 37.

hex(5) is 61.

hex(6) is 91.

hex(7) is 127.

hex(8) is 169.

hex(9) is 217.

hex(10) is 271.

hex(11) is 331.

hex(12) is 397.

hex(13) is 469.