221664311595082872

Names of 221664311595082872

• Cardinal: 221664311595082872 can be written as Two hundred twenty-one quadrillion, six hundred sixty-four trillion, three hundred eleven billion, five hundred ninety-five million, eighty-two thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.21664311595082872 × 10¹⁷

Factors of 221664311595082872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 321505

Divisors of 221664311595082872

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 248 279 372 558 744 961 1116 1922 2232 2883 3844 5766 7688 8649 11532 17298 23064 29791 34596 59582 69192 89373 119164 178746 238328 268119 321469 357492 536238 642938 714984 964407 1072476 1285876 1928814 2144952 2571752 2893221 3857628 5786442 7715256 9965539 11572884 19931078 23145768 29896617 39862156 59793234 79724312 89689851 119586468 179379702 239172936 308931709 358759404 617863418 717518808 926795127 1235726836 1853590254 2471453672 2780385381 3707180508 5560770762 7414361016 9576882979 11121541524 19153765958 22243083048 28730648937 38307531916 57461297874 76615063832 86191946811 103342317961 114922595748 172383893622 206684635922 229845191496 310026953883 344767787244 413369271844 620053907766 689535574488 826738543688 930080861649 1240107815532 1860161723298 2480215631064 3203611856791 3720323446596 6407223713582 7440646893192 9610835570373 12814447427164 19221671140746 25628894854328 28832506711119 38443342281492 57665013422238 76886684562984 99311967560521 115330026844476 198623935121042 230660053688952 297935902681563 397247870242084 595871805363126 794495740484168 893807708044689 1191743610726252 1787615416089378 2383487221452504 3078670994376151 3575230832178756 6157341988752302 7150461664357512 9236012983128453 12314683977504604 18472025966256906 24629367955009208 27708038949385359 36944051932513812 55416077898770718 73888103865027624 110832155797541436 221664311595082872
• Sum of all divisors σ(n): 620353463387561280
• Sum of proper divisors (its aliquot sum) s(n): 398689151792478408
• 221664311595082872 is an abundant number, because the sum of its proper divisors (398689151792478408) is greater than itself. Its abundance is 177024840197395536

Bases of 221664311595082872

• Binary: 1100010011100000101000010001011000000000011010010001111000₂
• Hexadecimal: 0x31382845801A478
• Base-36: 1OMLFUY8SDQ0

Squares and roots of 221664311595082872

• 221664311595082872 squared (221664311595082872²) is 49135067034921990973686008547768384
• 221664311595082872 cubed (221664311595082872³) is 10891490809474232874984230899660335819765983141518848
• The square root of 221664311595082872 is 470812395.3286307351
• The cube root of 221664311595082872 is 605199.5440364183

Scales and comparisons

• 221,664,311,595,082,872 seconds is equal to 7,048,239,455 years, 51 weeks, 3 days, 3 hours, 1 minute, 12 seconds.
• To count from 1 to 221,664,311,595,082,872 would take you about twenty-one billion, one hundred forty-four million, seven hundred eighteen thousand, three hundred sixty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 221664311595082872 cubic inches would be around 50433.3 feet tall.

Recreational maths with 221664311595082872

• 221664311595082872 backwards is 278280595113466122
• 221664311595082872 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 221664311595082872's digits is 72
• More coming soon!