128235989400

Names of 128235989400

• Cardinal: 128235989400 can be written as One hundred twenty-eight billion, two hundred thirty-five million, nine hundred eighty-nine thousand, four hundred.

Scientific notation

• Scientific notation: 1.282359894 × 10¹¹

Factors of 128235989400

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4030

Divisors of 128235989400

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 19 20 23 24 25 30 38 40 46 50 57 60 69 75 76 92 95 100 114 115 120 127 138 150 152 184 190 200 228 230 254 276 285 300 345 380 381 437 456 460 475 508 552 570 575 600 635 690 760 762 874 920 950 1016 1140 1150 1270 1311 1380 1425 1524 1725 1748 1900 1905 2185 2280 2300 2413 2540 2622 2760 2850 2921 3048 3175 3450 3496 3800 3810 3851 4370 4600 4826 5080 5244 5700 5842 6350 6555 6900 7239 7620 7702 8740 8763 9525 9652 10488 10925 11400 11553 11684 12065 12700 13110 13800 14478 14605 15240 15404 17480 17526 19050 19255 19304 21850 23106 23368 24130 25400 26220 28956 29210 30808 32775 35052 36195 38100 38510 43700 43815 46212 48260 52440 55499 57765 57912 58420 60325 65550 70104 72390 73025 73169 76200 77020 87400 87630 88573 92424 96275 96520 110998 115530 116840 120650 131100 144780 146050 146338 154040 166497 175260 177146 180975 192550 219075 219507 221996 231060 241300 262200 265719 277495 288825 289560 292100 292676 332994 350520 354292 361950 365845 385100 438150 439014 442865 443992 462120 482600 489077 531438 554990 577650 584200 585352 665988 708584 723900 731690 770200 832485 876300 878028 885730 978154 1062876 1097535 1109980 1155300 1328595 1331976 1387475 1447800 1463380 1467231 1664970 1682887 1752600 1756056 1771460 1829225 1956308 2125752 2195070 2214325 2219960 2310600 2445385 2657190 2774950 2926760 2934462 3329940 3365774 3542920 3658450 3912616 4162425 4390140 4428650 4890770 5048661 5314380 5487675 5549900 5868924 6642975 6659880 6731548 7316900 7336155 8324850 8414435 8780280 8857300 9292463 9781540 10097322 10628760 10975350 11099800 11248771 11737848 12226925 13285950 13463096 14633800 14672310 16649700 16828870 17714600 18584926 19563080 20194644 21950700 22497542 24453850 25243305 26571900 27877389 29344620 33299400 33657740 33746313 36680775 37169852 40389288 42072175 43901400 44995084 46462315 48907700 50486610 53143800 55754778 56243855 58689240 67315480 67492626 73361550 74339704 84144350 89990168 92924630 97815400 100973220 111509556 112487710 126216525 134985252 139386945 146723100 168288700 168731565 185849260 201946440 213726649 223019112 224975420 232311575 252433050 269970504 278773890 281219275 293446200 336577400 337463130 371698520 427453298 449950840 464623150 504866100 557547780 562438550 641179947 674926260 696934725 843657825 854906596 929246300 1009732200 1068633245 1115095560 1124877100 1282359894 1349852520 1393869450 1687315650 1709813192 1858492600 2137266490 2249754200 2564719788 2787738900 3205899735 3374631300 4274532980 5129439576 5343166225 5575477800 6411799470 6749262600 8549065960 10686332450 12823598940 16029498675 21372664900 25647197880 32058997350 42745329800 64117994700 128235989400
• Sum of all divisors σ(n): 440200396800
• Sum of proper divisors (its aliquot sum) s(n): 311964407400
• 128235989400 is an abundant number, because the sum of its proper divisors (311964407400) is greater than itself. Its abundance is 183728418000

Bases of 128235989400

• Binary: 1110111011011011101011110100110011000₂
• Hexadecimal: 0x1DDB75E998
• Base-36: 1MWSEAOO

Squares and roots of 128235989400

• 128235989400 squared (128235989400²) is 16444468977396912360000
• 128235989400 cubed (128235989400³) is 2108772749474099292989688984000000
• The square root of 128235989400 is 358100.5297399041
• The cube root of 128235989400 is 5042.7794649431

Scales and comparisons

• 128,235,989,400 seconds is equal to 4,077 years, 26 weeks, 2 days, 20 hours, 10 minutes.
• To count from 1 to 128,235,989,400 would take you about eight thousand, one hundred fifty-five 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 128235989400 cubic inches would be around 420.2 feet tall.

Recreational maths with 128235989400

• 128235989400 backwards is 004989532821
• The number of decimal digits it has is: 12
• The sum of 128235989400's digits is 51
• More coming soon!