128291749432

Names of 128291749432

• Cardinal: 128291749432 can be written as One hundred twenty-eight billion, two hundred ninety-one million, seven hundred forty-nine thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 1.28291749432 × 10¹¹

Factors of 128291749432

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 228

Divisors of 128291749432

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 7 8 11 14 17 22 28 34 44 49 56 68 77 88 98 119 121 136 154 187 191 196 238 242 289 308 343 374 382 392 476 484 539 578 616 686 748 764 833 847 952 968 1078 1156 1309 1337 1372 1496 1528 1666 1694 2023 2057 2101 2156 2312 2401 2618 2674 2744 3179 3247 3332 3388 3773 4046 4114 4202 4312 4802 5236 5348 5831 5929 6358 6494 6664 6776 7546 8092 8228 8404 9163 9359 9604 10472 10696 11662 11858 12716 12988 14161 14399 14707 15092 16184 16456 16808 18326 18718 19208 22253 22729 23111 23324 23716 25432 25976 26411 28322 28798 29414 30184 34969 35717 36652 37436 40817 41503 44506 45458 46222 46648 47432 52822 55199 56644 57596 58828 64141 65513 69938 71434 73304 74872 81634 83006 89012 90916 92444 99127 100793 102949 105644 110398 113288 115192 117656 128282 131026 139876 142868 155771 159103 161777 163268 166012 178024 181832 184888 198254 201586 205898 211288 220796 244783 250019 256564 262052 279752 285736 290521 311542 318206 323554 326536 332024 386393 392887 396508 403172 411796 441592 448987 458591 489566 500038 513128 524104 581042 607189 623084 636412 647108 693889 705551 720643 772786 785774 793016 806344 823592 897974 917182 979132 1000076 1090397 1113721 1132439 1162084 1214378 1246168 1272824 1294216 1387778 1411102 1441286 1545572 1571548 1713481 1750133 1795948 1834364 1958264 2000152 2180794 2227442 2264878 2324168 2428756 2704751 2750209 2775556 2822204 2882572 3091144 3143096 3426962 3500266 3591896 3668728 4250323 4361588 4454884 4529756 4857512 4938857 5044501 5409502 5500418 5551112 5644408 5765144 6679079 6853924 7000532 7632779 7796047 7927073 8500646 8723176 8909768 9059512 9877714 10089002 10819004 11000836 11994367 12250931 13358158 13707848 14001064 15265558 15592094 15854146 17001292 18933257 19251463 19755428 20178004 21638008 22001672 23988734 24501862 26716316 29752261 30531116 31184188 31708292 34002584 37866514 38502926 39510856 40356008 46753553 47977468 49003724 53432632 55489511 59504522 61062232 62368376 63416584 75733028 77005852 83960569 85756517 93507106 95954936 98007448 110979022 119009044 132532799 134760241 151466056 154011704 167921138 171513034 187014212 208265827 221958044 238018088 265065598 269520482 327274871 335842276 343026068 374028424 416531654 443916088 530131196 539040964 654549742 671684552 686052136 833063308 943321687 1060262392 1078081928 1309099484 1457860789 1666126616 1886643374 2290924097 2618198968 2915721578 3773286748 4581848194 5831443156 7546573496 9163696388 11662886312 16036468679 18327392776 32072937358 64145874716 128291749432
• Sum of all divisors σ(n): 329378777280
• Sum of proper divisors (its aliquot sum) s(n): 201087027848
• 128291749432 is an abundant number, because the sum of its proper divisors (201087027848) is greater than itself. Its abundance is 72795278416

Bases of 128291749432

• Binary: 1110111011110110010001011111000111000₂
• Hexadecimal: 0x1DDEC8BE38
• Base-36: 1MXPLFEG

Squares and roots of 128291749432

• 128291749432 squared (128291749432²) is 16458772972323072322624
• 128291749432 cubed (128291749432³) is 2111524778123445465366492472749568
• The square root of 128291749432 is 358178.3765555927
• The cube root of 128291749432 is 5043.5102655037

Scales and comparisons

• 128,291,749,432 seconds is equal to 4,079 years, 14 weeks, 4 days, 5 hours, 3 minutes, 52 seconds.
• To count from 1 to 128,291,749,432 would take you about eight thousand, one hundred fifty-eight 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 128291749432 cubic inches would be around 420.3 feet tall.

Recreational maths with 128291749432

• 128291749432 backwards is 234947192821
• The number of decimal digits it has is: 12
• The sum of 128291749432's digits is 52
• More coming soon!