18157442688

Names of 18157442688

• Cardinal: 18157442688 can be written as Eighteen billion, one hundred fifty-seven million, four hundred forty-two thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8157442688 × 10¹⁰

Factors of 18157442688

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 12081

Divisors of 18157442688

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 17 18 21 22 24 28 32 33 34 36 42 44 48 51 56 63 64 66 68 72 77 84 88 96 99 102 112 119 126 128 132 136 144 153 154 168 176 187 192 198 204 224 231 238 252 264 272 288 306 308 336 352 357 374 384 396 408 448 462 476 504 528 544 561 576 612 616 672 693 704 714 748 792 816 896 924 952 1008 1056 1071 1088 1122 1152 1224 1232 1309 1344 1386 1408 1428 1496 1584 1632 1683 1848 1904 2016 2112 2142 2176 2244 2448 2464 2618 2688 2772 2856 2992 3168 3264 3366 3696 3808 3927 4032 4224 4284 4488 4896 4928 5236 5544 5712 5984 6336 6528 6732 7392 7616 7854 8064 8568 8976 9792 9856 10472 11088 11424 11781 11968 12041 12672 13464 14784 15232 15708 17136 17952 19584 20944 22176 22848 23562 23936 24082 26928 29568 31416 34272 35904 36123 41888 44352 45696 47124 48164 53856 62832 68544 71808 72246 83776 84287 88704 94248 96328 107712 108369 125664 132451 137088 144492 167552 168574 188496 192656 204697 215424 216738 251328 252861 264902 288984 337148 376992 385312 397353 409394 433476 502656 505722 529804 577968 614091 674296 753984 758583 770624 794706 818788 866952 927157 1011444 1059608 1155936 1192059 1228182 1348592 1432879 1507968 1517166 1541248 1589412 1637576 1733904 1842273 1854314 2022888 2119216 2251667 2311872 2384118 2456364 2697184 2781471 2865758 3034332 3178824 3275152 3467808 3684546 3708628 4045776 4238432 4298637 4503334 4623744 4768236 4912728 5394368 5562942 5731516 6068664 6357648 6550304 6755001 6935616 7369092 7417256 8091552 8344413 8476864 8597274 9006668 9536472 9825456 10788736 11125884 11463032 12137328 12715296 12895911 13100608 13510002 13871232 14738184 14834512 15761669 16183104 16688826 16953728 17194548 18013336 19072944 19650912 20265003 22251768 22926064 24274656 25430592 25791822 26201216 27020004 29476368 29669024 31523338 32366208 33377652 34389096 36026672 38145888 39301824 40530006 44503536 45852128 47285007 48549312 50861184 51583644 54040008 58952736 59338048 63046676 66755304 68778192 72053344 76291776 78603648 81060012 89007072 91704256 94570014 97098624 103167288 108080016 117905472 118676096 126093352 133510608 137556384 141855021 144106688 152583552 162120024 178014144 183408512 189140028 206334576 216160032 235810944 252186704 267021216 275112768 283710042 288213376 324240048 356028288 378280056 412669152 432320064 504373408 534042432 550225536 567420084 648480096 756560112 825338304 864640128 1008746816 1068084864 1134840168 1296960192 1513120224 1650676608 2017493632 2269680336 2593920384 3026240448 4539360672 6052480896 9078721344 18157442688
• Sum of all divisors σ(n): 68980429440
• Sum of proper divisors (its aliquot sum) s(n): 50822986752
• 18157442688 is an abundant number, because the sum of its proper divisors (50822986752) is greater than itself. Its abundance is 32665544064

Bases of 18157442688

• Binary: 10000111010010001001001011010000000₂
• Hexadecimal: 0x43A449680
• Base-36: 8CAH0G0

Squares and roots of 18157442688

• 18157442688 squared (18157442688²) is 329692724968004665344
• 18157442688 cubed (18157442688³) is 5986376758257091344700299804672
• The square root of 18157442688 is 134749.5554278381
• The cube root of 18157442688 is 2628.3602711465

Scales and comparisons

• 18,157,442,688 seconds is equal to 577 years, 18 weeks, 1 day, 14 hours, 4 minutes, 48 seconds.
• To count from 1 to 18,157,442,688 would take you about one thousand, one hundred fifty-four 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 18157442688 cubic inches would be around 219 feet tall.

Recreational maths with 18157442688

• 18157442688 backwards is 88624475181
• The number of decimal digits it has is: 11
• The sum of 18157442688's digits is 54
• More coming soon!