[[474]] is not prime (composite). Want proof? :)

Full prime factorization: [[2]] * [[3]] * [[79]]

Factor pairs:

[[474]] = [[2]] * [[237]]

[[474]] = [[3]] * [[158]]

[[474]] = [[6]] * [[79]]

Proper divisors: [[2]], [[3]], [[6]], [[79]], [[158]], [[237]]

Primes up to 474: [[2]], [[3]], [[5]], [[7]], [[11]], [[13]], [[17]], [[19]], [[23]], [[29]], [[31]], [[37]], [[41]], [[43]], [[47]], [[53]], [[59]], [[61]], [[67]], [[71]], [[73]], [[79]], [[83]], [[89]], [[97]], [[101]], [[103]], [[107]], [[109]], [[113]], [[127]], [[131]], [[137]], [[139]], [[149]], [[151]], [[157]], [[163]], [[167]], [[173]], [[179]], [[181]], [[191]], [[193]], [[197]], [[199]], [[211]], [[223]], [[227]], [[229]], … (91 total).

[[474]] is not a centered hexagonal number.

The closest centered hexagonal numbers are [[469]] (index # [[13]]) and [[547]] (index # [[14]]).

First 20 centered hexagonal numbers: [[1]], [[7]], [[19]], [[37]], [[61]], [[91]], [[127]], [[169]], [[217]], [[271]], [[331]], [[397]], [[469]], [[547]], [[631]], [[721]], [[817]], [[919]], [[1027]], [[1141]].

[[hz/474]] is closest to [[A#4]] at [[474]] Hz (+29 cents).

Note class: [[A#]], Octave: [[octave/4]].

• [[square]]: 224676

• [[square root]]: 21.7715

• [[cube]]: 106496424

• [[cube root]]: 7.7970

• [[natural log]] (ln): 6.1612

• [[base-10 log]] (log10): 2.6758

• [[base-2 log]] (log2): 8.8887