642999144788

Names of 642999144788

• Cardinal: 642999144788 can be written as Six hundred forty-two billion, nine hundred ninety-nine million, one hundred forty-four thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 6.42999144788 × 10¹¹

Factors of 642999144788

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4293

Divisors of 642999144788

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 11 13 14 19 22 23 26 28 38 44 46 52 76 77 89 91 92 133 143 154 161 178 182 209 247 253 266 286 299 308 322 356 364 418 437 494 506 532 572 598 623 644 836 874 979 988 1001 1012 1157 1196 1246 1463 1691 1729 1748 1771 1958 2002 2047 2093 2314 2492 2717 2926 3059 3289 3382 3458 3542 3916 4004 4094 4129 4186 4628 4807 5434 5681 5852 6118 6578 6764 6853 6916 7084 8099 8188 8258 8372 9614 10868 11362 11837 12236 12727 13156 13706 14329 16198 16516 18601 19019 19228 21983 22517 22724 23023 23674 25454 26611 27412 28658 28903 32396 33649 37202 38038 38893 39767 43966 45034 45419 46046 47348 50908 53222 53677 57316 57806 62491 67298 74404 76076 77786 78451 79534 87932 89089 90068 90838 92092 94967 106444 107354 115612 124982 130207 134596 153881 155572 156902 157619 159068 178178 181676 186277 189934 214708 241813 249964 260414 272251 292721 307762 313804 315238 317933 356356 367481 372554 375739 379868 427823 437437 483626 505609 520828 544502 549157 585442 590447 615524 630476 635866 664769 734962 745108 751478 855646 862961 874874 967252 1011218 1019863 1044637 1089004 1098314 1170884 1180894 1234571 1271732 1329538 1469924 1502956 1692691 1711292 1725922 1749748 1804373 2022436 2039726 2049047 2089274 2196628 2361788 2469142 2572367 2659076 2994761 3385382 3451844 3539263 3608746 4042291 4079452 4098094 4133129 4178548 4777253 4938284 5144734 5561699 5989522 6040727 6770764 6982139 7078526 7139041 7217492 7312459 8084582 8196188 8266258 8452063 8641997 9554506 10289468 11123398 11218493 11979044 12081454 12630611 13580281 13964278 14157052 14278082 14624918 16169164 16532516 16904126 17283994 19109012 19848103 22246796 22436986 23456849 24162908 25261222 27160562 27928556 28296037 28556164 29249836 33440771 33808252 34567988 38931893 39696206 44873972 46913698 48874973 50522444 52549783 54321124 56592074 59164441 66881542 76803529 77863786 78529451 79392412 90767807 92972693 93827396 95061967 97749946 105099566 109876819 113184148 118328882 133763084 138936721 153607058 155727572 157058902 160589197 164197943 181535614 185945386 190123934 195499892 210199132 219753638 236657764 258025339 277873442 307214116 314117804 321178394 328395886 363071228 367848481 371890772 380247868 439507276 516050678 537624703 555746884 635374649 642356788 650808851 656791772 735696962 769137733 998445877 1032101356 1075249406 1124124379 1208645009 1270749298 1301617702 1471393924 1538275466 1766481167 1806177373 1996891754 2087659561 2150498812 2248248758 2417290018 2541498596 2603235404 3076550932 3532962334 3612354746 3993783508 4175319122 4496497516 4834580036 6989121139 7065924668 7224709492 8350638244 8460515063 12365368169 13978242278 14613616927 16921030126 22964255171 24730736338 27956484556 29227233854 33842060252 45928510342 49461472676 58454467708 91857020684 160749786197 321499572394 642999144788
• Sum of all divisors σ(n): 1678537728000
• Sum of proper divisors (its aliquot sum) s(n): 1035538583212
• 642999144788 is an abundant number, because the sum of its proper divisors (1035538583212) is greater than itself. Its abundance is 392539438424

Bases of 642999144788

• Binary: 1001010110110101101111000101000101010100₂
• Hexadecimal: 0x95B5BC5154
• Base-36: 87E137F8

Squares and roots of 642999144788

• 642999144788 squared (642999144788²) is 413447900198099387564944
• 642999144788 cubed (642999144788³) is 265846646241772281987285553809111872
• The square root of 642999144788 is 801872.2746098659
• The cube root of 642999144788 is 8631.1791655671

Scales and comparisons

• 642,999,144,788 seconds is equal to 20,445 years, 19 weeks, 6 days, 17 hours, 33 minutes, 8 seconds.
• To count from 1 to 642,999,144,788 would take you about forty thousand, eight hundred ninety 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 642999144788 cubic inches would be around 719.3 feet tall.

Recreational maths with 642999144788

• 642999144788 backwards is 887441999246
• The number of decimal digits it has is: 12
• The sum of 642999144788's digits is 71
• More coming soon!