What number is CDI?

What year is the Roman Numeral CDI?

CDI = 401

Convert between a number and Roman Numerals.
Number Roman Numeral
402CDII
403CDIII
404CDIV
405CDV
406CDVI
407CDVII
408CDVIII
409CDIX
410CDX
411CDXI
412CDXII
413CDXIII
414CDXIV
415CDXV
416CDXVI
417CDXVII
418CDXVIII
419CDXIX
420CDXX
421CDXXI
422CDXXII
423CDXXIII
424CDXXIV
425CDXXV
426CDXXVI
Number Roman Numeral
427CDXXVII
428CDXXVIII
429CDXXIX
430CDXXX
431CDXXXI
432CDXXXII
433CDXXXIII
434CDXXXIV
435CDXXXV
436CDXXXVI
437CDXXXVII
438CDXXXVIII
439CDXXXIX
440CDXL
441CDXLI
442CDXLII
443CDXLIII
444CDXLIV
445CDXLV
446CDXLVI
447CDXLVII
448CDXLVIII
449CDXLIX
450CDL
451CDLI
Number Roman Numeral
452CDLII
453CDLIII
454CDLIV
455CDLV
456CDLVI
457CDLVII
458CDLVIII
459CDLIX
460CDLX
461CDLXI
462CDLXII
463CDLXIII
464CDLXIV
465CDLXV
466CDLXVI
467CDLXVII
468CDLXVIII
469CDLXIX
470CDLXX
471CDLXXI
472CDLXXII
473CDLXXIII
474CDLXXIV
475CDLXXV
476CDLXXVI
Number Roman Numeral
477CDLXXVII
478CDLXXVIII
479CDLXXIX
480CDLXXX
481CDLXXXI
482CDLXXXII
483CDLXXXIII
484CDLXXXIV
485CDLXXXV
486CDLXXXVI
487CDLXXXVII
488CDLXXXVIII
489CDLXXXIX
490CDXC
491CDXCI
492CDXCII
493CDXCIII
494CDXCIV
495CDXCV
496CDXCVI
497CDXCVII
498CDXCVIII
499CDXCIX
500D
501DI