381388009280

Names of 381388009280

• Cardinal: 381388009280 can be written as Three hundred eighty-one billion, three hundred eighty-eight million, nine thousand, two hundred eighty.

Scientific notation

• Scientific notation: 3.8138800928 × 10¹¹

Factors of 381388009280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 128

Divisors of 381388009280

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 23 32 38 40 46 64 76 79 80 92 95 115 152 158 160 184 190 230 304 316 320 361 368 380 395 437 460 529 608 632 722 736 760 790 874 920 1058 1216 1264 1444 1472 1501 1520 1580 1748 1805 1817 1840 2116 2185 2528 2645 2888 3002 3040 3160 3496 3610 3634 3680 4232 4370 5056 5290 5776 6004 6080 6241 6320 6992 7220 7268 7360 7505 8303 8464 8740 9085 10051 10580 11552 12008 12482 12640 13984 14440 14536 15010 16606 16928 17480 18170 20102 21160 23104 24016 24964 25280 27968 28519 28880 29072 30020 31205 33212 33856 34523 34960 36340 40204 41515 41791 42320 48032 49928 50255 57038 57760 58144 60040 62410 66424 69046 69920 72680 80408 83030 83582 84640 96064 99856 100510 114076 115520 116288 118579 120080 124820 132848 138092 139840 142595 143543 145360 160816 166060 167164 169280 172615 190969 199712 201020 208955 228152 237158 240160 249640 265696 276184 285190 287086 290720 321632 332120 334328 345230 381938 399424 402040 417910 456304 474316 480320 499280 531392 552368 570380 574172 581440 592895 643264 655937 664240 668656 690460 717715 763876 794029 804080 835820 912608 948632 954845 998560 1104736 1140760 1148344 1185790 1311874 1328480 1337312 1380920 1435430 1527752 1588058 1608160 1671640 1825216 1897264 1909690 1997120 2209472 2253001 2281520 2296688 2371580 2623748 2656960 2674624 2727317 2761840 2870860 3055504 3176116 3216320 3279685 3301489 3343280 3794528 3819380 3970145 4506002 4563040 4593376 4743160 5247496 5454634 5523680 5741720 6111008 6352232 6559370 6602978 6686560 7589056 7638760 7940290 9012004 9126080 9186752 9486320 10494992 10909268 11047360 11265005 11483440 12222016 12704464 13118740 13205956 13373120 13636585 15086551 15277520 15880580 16507445 18024008 18972640 20989984 21818536 22530010 22966880 25408928 26237480 26411912 27273170 30173102 30555040 31761160 33014890 36048016 37945280 41979968 43637072 45060020 45933760 50817856 51819023 52474960 52823824 54546340 60346204 61110080 62728291 63522320 66029780 72096032 75432755 87274144 90120040 103638046 104949920 105647648 109092680 120692408 125456582 127044640 132059560 144192064 150865510 174548288 180240080 207276092 209899840 211295296 218185360 241384816 250913164 254089280 259095115 264119120 301731020 313641455 360480160 414552184 436370720 482769632 501826328 518190230 528238240 603462040 627282910 720960320 829104368 872741440 965539264 1003652656 1036380460 1056476480 1191837529 1206924080 1254565820 1658208736 2007305312 2072760920 2383675058 2413848160 2509131640 3316417472 4014610624 4145521840 4767350116 4827696320 5018263280 5959187645 8291043680 9534700232 10036526560 11918375290 16582087360 19069400464 20073053120 23836750580 38138800928 47673501160 76277601856 95347002320 190694004640 381388009280
• Sum of all divisors σ(n): 1014824325186
• Sum of proper divisors (its aliquot sum) s(n): 633436315906
• 381388009280 is an abundant number, because the sum of its proper divisors (633436315906) is greater than itself. Its abundance is 252048306626

Bases of 381388009280

• Binary: 101100011001100011111110010111101000000₂
• Hexadecimal: 0x58CC7F2F40
• Base-36: 4V7GKNCW

Squares and roots of 381388009280

• 381388009280 squared (381388009280²) is 145456813622561366118400
• 381388009280 cubed (381388009280³) is 55475484583720664718533816778752000
• The square root of 381388009280 is 617566.1982978019
• The cube root of 381388009280 is 7251.9646472989

Scales and comparisons

• 381,388,009,280 seconds is equal to 12,126 years, 49 weeks, 6 days, 1 hour, 41 minutes, 20 seconds.
• To count from 1 to 381,388,009,280 would take you about twenty-four thousand, two hundred fifty-three 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 381388009280 cubic inches would be around 604.3 feet tall.

Recreational maths with 381388009280

• 381388009280 backwards is 082900883183
• The number of decimal digits it has is: 12
• The sum of 381388009280's digits is 50
• More coming soon!