72138664488

Names of 72138664488

• Cardinal: 72138664488 can be written as Seventy-two billion, one hundred thirty-eight million, six hundred sixty-four thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 7.2138664488 × 10¹⁰

Factors of 72138664488

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 780

Divisors of 72138664488

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 11 12 22 24 33 44 66 71 83 88 89 132 142 166 178 213 249 264 267 284 332 356 426 498 521 534 568 664 712 781 852 913 979 996 1042 1068 1562 1563 1704 1826 1958 1992 2084 2136 2343 2739 2937 3124 3126 3652 3916 4168 4686 5478 5731 5874 5893 6248 6252 6319 7304 7387 7832 9372 10956 11462 11748 11786 12504 12638 14774 17193 17679 18744 18957 21912 22161 22924 23496 23572 25276 29548 34386 35358 36991 37914 43243 44322 45848 46369 47144 50552 59096 64823 68772 69509 70716 73982 75828 81257 86486 88644 92738 110973 129646 129729 137544 139018 139107 141432 147964 151656 162514 172972 177288 185476 194469 208527 221946 243771 259292 259458 278036 278214 295928 325028 345944 370952 388938 406901 417054 443892 475673 487542 510059 518584 518916 524477 556072 556428 650056 777876 813802 834108 887784 951346 975084 1020118 1037832 1048954 1112856 1220703 1427019 1530177 1555752 1573431 1627604 1668216 1902692 1950168 2040236 2097908 2441406 2854038 3060354 3070253 3146862 3255208 3292199 3805384 3848627 4080472 4195816 4882812 5708076 5769247 6120708 6140506 6293724 6584398 7697254 9210759 9765624 9876597 11416152 11538494 11545881 12241416 12281012 12587448 13168796 15394508 17307741 18421518 19753194 23076988 23091762 24562024 26337592 30789016 33772783 34615482 36214189 36843036 39506388 42334897 46153976 46183524 67545566 69230964 72428378 73686072 79012776 84669794 92367048 101318349 108642567 127004691 135091132 138461928 144856756 169339588 202636698 217285134 254009382 270182264 273252517 289713512 338679176 405273396 434570268 508018764 546505034 810546792 819757551 869140536 1016037528 1093010068 1639515102 2186020136 3005777687 3279030204 6011555374 6558060408 9017333061 12023110748 18034666122 24046221496 36069332244 72138664488
• Sum of all divisors σ(n): 204577228800
• Sum of proper divisors (its aliquot sum) s(n): 132438564312
• 72138664488 is an abundant number, because the sum of its proper divisors (132438564312) is greater than itself. Its abundance is 60299899824

Bases of 72138664488

• Binary: 1000011001011110011001010101000101000₂
• Hexadecimal: 0x10CBCCAA28
• Base-36: X51HXRC

Squares and roots of 72138664488

• 72138664488 squared (72138664488²) is 5203986914112232302144
• 72138664488 cubed (72138664488³) is 375408665997084798421081859062272
• The square root of 72138664488 is 268586.4190311937
• The cube root of 72138664488 is 4162.8366163977

Scales and comparisons

• 72,138,664,488 seconds is equal to 2,293 years, 40 weeks, 6 days, 5 hours, 54 minutes, 48 seconds.
• To count from 1 to 72,138,664,488 would take you about four thousand, five hundred eighty-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 72138664488 cubic inches would be around 346.9 feet tall.

Recreational maths with 72138664488

• 72138664488 backwards is 88446683127
• The number of decimal digits it has is: 11
• The sum of 72138664488's digits is 57
• More coming soon!