64742021294671872

Names of 64742021294671872

• Cardinal: 64742021294671872 can be written as Sixty-four quadrillion, seven hundred forty-two trillion, twenty-one billion, two hundred ninety-four million, six hundred seventy-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.4742021294671872 × 10¹⁶

Factors of 64742021294671872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 42

Divisors of 64742021294671872

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 37 48 64 72 74 96 111 128 144 148 192 222 256 288 296 333 384 444 512 576 592 666 768 888 1024 1152 1184 1332 1369 1536 1776 2048 2304 2368 2664 2738 3072 3552 4107 4608 4736 5328 5476 6144 7104 8214 9216 9472 10656 10952 12321 14208 16428 18432 18944 21312 21904 24642 28416 32856 37888 42624 43808 49284 50653 56832 65712 75776 85248 87616 98568 101306 113664 131424 151959 170496 175232 197136 202612 227328 262848 303918 340992 350464 394272 405224 455877 525696 607836 681984 700928 788544 810448 911754 1051392 1215672 1401856 1577088 1620896 1823508 1874161 2102784 2431344 2803712 3154176 3241792 3647016 3748322 4205568 4862688 5622483 6308352 6483584 7294032 7496644 8411136 9725376 11244966 12616704 12967168 14588064 14993288 16867449 19450752 22489932 25233408 25934336 29176128 29986576 33734898 38901504 44979864 51868672 58352256 59973152 67469796 69343957 77803008 89959728 103737344 116704512 119946304 134939592 138687914 155606016 179919456 208031871 233409024 239892608 269879184 277375828 311212032 359838912 416063742 466818048 479785216 539758368 554751656 624095613 719677824 832127484 933636096 959570432 1079516736 1109503312 1248191226 1439355648 1664254968 1919140864 2159033472 2219006624 2496382452 2565726409 2878711296 3328509936 3838281728 4318066944 4438013248 4992764904 5131452818 5757422592 6657019872 7697179227 8636133888 8876026496 9985529808 10262905636 11514845184 13314039744 15394358454 17272267776 17752052992 19971059616 20525811272 23091537681 26628079488 30788716908 34544535552 35504105984 39942119232 41051622544 46183075362 53256158976 61577433816 71008211968 79884238464 82103245088 92366150724 94931877133 106512317952 123154867632 142016423936 159768476928 164206490176 184732301448 189863754266 213024635904 246309735264 284795631399 319536953856 328412980352 369464602896 379727508532 426049271808 492619470528 569591262798 639073907712 656825960704 738929205792 759455017064 854386894197 985238941056 1139182525596 1278147815424 1313651921408 1477858411584 1518910034128 1708773788394 1970477882112 2278365051192 2627303842816 2955716823168 3037820068256 3417547576788 3512479453921 3940955764224 4556730102384 5254607685632 5911433646336 6075640136512 6835095153576 7024958907842 7881911528448 9113460204768 10537438361763 11822867292672 12151280273024 13670190307152 14049917815684 15763823056896 18226920409536 21074876723526 23645734585344 24302560546048 27340380614304 28099835631368 31612315085289 36453840819072 42149753447052 47291469170688 48605121092096 54680761228608 56199671262736 63224630170578 72907681638144 84299506894104 97210242184192 109361522457216 112399342525472 126449260341156 145815363276288 168599013788208 194420484368384 218723044914432 224798685050944 252898520682312 291630726552576 337198027576416 437446089828864 449597370101888 505797041364624 583261453105152 674396055152832 874892179657728 899194740203776 1011594082729248 1348792110305664 1749784359315456 1798389480407552 2023188165458496 2697584220611328 3596778960815104 4046376330916992 5395168441222656 7193557921630208 8092752661833984 10790336882445312 16185505323667968 21580673764890624 32371010647335936 64742021294671872
• Sum of all divisors σ(n): 192180922721968635
• Sum of proper divisors (its aliquot sum) s(n): 127438901427296763
• 64742021294671872 is an abundant number, because the sum of its proper divisors (127438901427296763) is greater than itself. Its abundance is 62696880132624891

Bases of 64742021294671872

• Binary: 11100110000000101000011001111101010011110100100000000000₂
• Hexadecimal: 0xE602867D4F4800
• Base-36: HPH4PZLE680

Squares and roots of 64742021294671872

• 64742021294671872 squared (64742021294671872²) is 4191529321319746137098136147984384
• 64742021294671872 cubed (64742021294671872³) is 271368080578124543778855514337140523037491460046848
• The square root of 64742021294671872 is 254444534.8099893303
• The cube root of 64742021294671872 is 401539.9415393545

Scales and comparisons

• 64,742,021,294,671,872 seconds is equal to 2,058,596,016 years, 49 weeks, 2 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 64,742,021,294,671,872 would take you about six billion, one hundred seventy-five million, seven hundred eighty-eight thousand and fifty 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 64742021294671872 cubic inches would be around 33461.7 feet tall.

Recreational maths with 64742021294671872

• 64742021294671872 backwards is 27817649212024746
• 64742021294671872 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 64742021294671872's digits is 72
• More coming soon!