11387139920

Names of 11387139920

• Cardinal: 11387139920 can be written as Eleven billion, three hundred eighty-seven million, one hundred thirty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.138713992 × 10¹⁰

Factors of 11387139920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 784

Divisors of 11387139920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 23 26 34 40 41 46 52 65 68 80 82 85 92 104 115 130 136 164 170 184 205 208 221 230 260 272 299 328 340 368 391 410 442 460 520 533 598 656 680 683 697 782 820 884 920 943 1040 1066 1105 1196 1360 1366 1394 1495 1564 1640 1768 1840 1886 1955 2132 2210 2392 2665 2732 2788 2990 3128 3280 3415 3485 3536 3772 3910 4264 4420 4715 4784 5083 5330 5464 5576 5980 6256 6830 6970 7544 7820 8528 8840 8879 9061 9430 10166 10660 10928 11152 11611 11960 12259 13660 13940 15088 15640 15709 16031 17680 17758 18122 18860 20332 21320 23222 23920 24518 25415 27320 27880 28003 31280 31418 32062 35516 36244 37720 40664 42640 44395 45305 46444 49036 50830 54640 55760 56006 58055 61295 62836 64124 71032 72488 75440 78545 80155 81328 88790 90610 92888 98072 101660 112012 116110 122590 125672 128248 140015 142064 144976 150943 157090 160310 177580 181220 185776 196144 203320 204217 208403 224024 232220 245180 251344 256496 267053 280030 301886 314180 320620 355160 362440 364039 406640 408434 416806 448048 464440 476051 490360 534106 560060 603772 628360 641240 644069 710320 724880 728078 754715 816868 833612 928880 952102 980720 1021085 1042015 1068212 1120120 1207544 1256720 1282480 1288138 1335265 1456156 1509430 1633736 1667224 1820195 1904204 2042170 2084030 2136424 2240240 2380255 2415088 2576276 2670530 2912312 3018860 3220345 3267472 3334448 3471689 3640390 3808408 4084340 4168060 4272848 4760510 5152552 5341060 5824624 6037720 6188663 6440690 6943378 7280780 7616816 8168680 8336120 8372897 9521020 10305104 10682120 10949173 12075440 12377326 12881380 13886756 14561560 16337360 16672240 16745794 17358445 19042040 21364240 21898346 24754652 25762760 27773512 29123120 30943315 33491588 34716890 38084080 41864485 43796692 49509304 51525520 54745865 55547024 61886630 66983176 69433780 83728970 87593384 99018608 109491730 123773260 133966352 138867560 142339249 167457940 175186768 218983460 247546520 277735120 284678498 334915880 437966920 495093040 569356996 669831760 711696245 875933840 1138713992 1423392490 2277427984 2846784980 5693569960 11387139920
• Sum of all divisors σ(n): 32316931584
• Sum of proper divisors (its aliquot sum) s(n): 20929791664
• 11387139920 is an abundant number, because the sum of its proper divisors (20929791664) is greater than itself. Its abundance is 9542651744

Bases of 11387139920

• Binary: 1010100110101110011111011101010000₂
• Hexadecimal: 0x2A6B9F750
• Base-36: 58BLXE8

Squares and roots of 11387139920

• 11387139920 squared (11387139920²) is 129666955557657606400
• 11387139920 cubed (11387139920³) is 1476535765935468791529087488000
• The square root of 11387139920 is 106710.5426844041
• The cube root of 11387139920 is 2249.7705063049

Scales and comparisons

• 11,387,139,920 seconds is equal to 362 years, 3 weeks, 6 days, 14 hours, 25 minutes, 20 seconds.
• To count from 1 to 11,387,139,920 would take you about seven hundred twenty-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 11387139920 cubic inches would be around 187.5 feet tall.

Recreational maths with 11387139920

• 11387139920 backwards is 02993178311
• The number of decimal digits it has is: 11
• The sum of 11387139920's digits is 44
• More coming soon!