72168145595820978

Names of 72168145595820978

• Cardinal: 72168145595820978 can be written as Seventy-two quadrillion, one hundred sixty-eight trillion, one hundred forty-five billion, five hundred ninety-five million, eight hundred twenty thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 7.2168145595820978 × 10¹⁶

Factors of 72168145595820978

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5337545

Divisors of 72168145595820978

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 11 22 29 33 58 66 71 87 142 174 191 213 319 382 426 521 573 638 781 957 1042 1146 1562 1563 1914 2059 2101 2343 3126 4118 4202 4686 5539 5731 6177 6303 11078 11462 12354 12606 13561 15109 16617 17193 22649 27122 30218 33234 34386 36991 40683 45298 45327 60929 67947 73982 81366 90654 99511 110973 121858 135894 149171 166199 182787 199022 221946 298342 298533 332398 365574 393269 406901 447513 498597 597066 786538 813802 895026 997194 1072739 1094621 1179807 1220703 2145478 2189242 2359614 2441406 2885819 3218217 3283863 4325959 5336717 5771638 6436434 6567726 7065281 8651918 8657457 10673434 11800129 12977877 14130562 16010151 17314914 21195843 23600258 25955754 31744009 32020302 35400387 42391686 58703887 63488018 70800774 77718091 95232027 117407774 154764793 155436182 176111661 190464054 204893149 233154273 309529586 352223322 378906907 409786298 464294379 466308546 614679447 757813814 928588758 1019312947 1136720721 1229358894 1702412723 2038625894 2253824639 2273441442 2780429557 3057938841 3404825446 4167975977 4507649278 5107238169 5560859114 6115877682 6761473917 8335951954 8341288671 10214476338 10988300303 11212442417 12503927931 13522947834 16682577342 21976600606 22424884834 25007855862 29560075463 30584725127 32964900909 33637327251 59120150926 61169450254 65929801818 67274654502 72371219237 80632457153 88680226389 91754175381 120871303333 144742438474 161264914306 177360452778 183508350762 197410498547 217113657711 241742606666 241897371459 325160830093 362613909999 394820997094 434227315422 483794742918 531062045387 592231495641 650321660186 725227819998 796083411607 886957028683 975482490279 1062124090774 1184462991282 1592166823214 1593186136161 1773914057366 1950964980558 2098765357873 2171515484017 2388250234821 2660871086049 3186372272322 4197530715746 4343030968034 4776500469642 5321742172098 5724904457863 5841682499257 6296296073619 6514546452051 11449808915726 11683364998514 12592592147238 13029092904102 15400799316223 17174713373589 17525047497771 23086418936603 30801598632446 34349426747178 35050094995542 37705405222477 46172837873206 46202397948669 62973949036493 69259256809809 75410810444954 92404795897338 113116215667431 125947898072986 138518513619618 169408792478453 188921847109479 226232431334862 338817584956906 377843694218958 414759457447247 508226377435359 829518914894494 1016452754870718 1093456751451833 1244278372341741 2186913502903666 2488556744683482 3280370254355499 6560740508710998 12028024265970163 24056048531940326 36084072797910489 72168145595820978
• Sum of all divisors σ(n): 166365101611745280
• Sum of proper divisors (its aliquot sum) s(n): 94196956015924302
• 72168145595820978 is an abundant number, because the sum of its proper divisors (94196956015924302) is greater than itself. Its abundance is 22028810420103324

Bases of 72168145595820978

• Binary: 100000000011001001000101111001010010101100110101110110010₂
• Hexadecimal: 0x100648BCA566BB2
• Base-36: JQLH0E9G7N6

Squares and roots of 72168145595820978

• 72168145595820978 squared (72168145595820978²) is 5208241238739614823694257824876484
• 72168145595820978 cubed (72168145595820978³) is 375869112015519528366285425969880974604239426081352
• The square root of 72168145595820978 is 268641295.4030354913
• The cube root of 72168145595820978 is 416340.3618488591

Scales and comparisons

• 72,168,145,595,820,978 seconds is equal to 2,294,723,799 years, 11 weeks, 1 day, 14 hours, 16 minutes, 18 seconds.
• To count from 1 to 72,168,145,595,820,978 would take you about six billion, eight hundred eighty-four million, one hundred seventy-one thousand, three hundred ninety-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 72168145595820978 cubic inches would be around 34695 feet tall.

Recreational maths with 72168145595820978

• 72168145595820978 backwards is 87902859554186127
• 72168145595820978 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 72168145595820978's digits is 87
• More coming soon!