128734981200

Names of 128734981200

• Cardinal: 128734981200 can be written as One hundred twenty-eight billion, seven hundred thirty-four million, nine hundred eighty-one thousand, two hundred.

Scientific notation

• Scientific notation: 1.287349812 × 10¹¹

Factors of 128734981200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4757

Divisors of 128734981200

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 35 36 40 42 45 48 50 56 60 63 70 72 75 80 84 90 100 105 112 120 126 140 144 150 168 175 180 200 210 225 240 252 280 300 315 336 350 360 400 420 450 504 525 560 600 630 700 720 840 900 1008 1050 1200 1260 1400 1575 1657 1680 1800 2100 2520 2800 3083 3150 3314 3600 4200 4971 5040 6166 6300 6628 8285 8400 9249 9942 11599 12332 12600 13256 14913 15415 16570 18498 19884 21581 23198 24664 24855 25200 26512 27747 29826 30830 33140 34797 36996 39768 41425 43162 46245 46396 49328 49710 55494 57995 59652 61660 64743 66280 69594 73992 74565 77075 79536 82850 86324 92490 92792 99420 104391 107905 110988 115990 119304 123320 124275 129486 132560 138735 139188 147984 149130 154150 165700 172648 173985 184980 185584 194229 198840 208782 215810 221976 231225 231980 238608 246640 248550 258972 277470 278376 289975 298260 308300 323715 331400 345296 347970 369960 372825 388458 397680 417564 431620 443952 462450 463960 497100 517944 521955 539525 554940 556752 579950 596520 616600 647430 662800 693675 695940 739920 745650 776916 835128 863240 869925 924900 927920 971145 994200 1035888 1043910 1079050 1109880 1159900 1193040 1233200 1294860 1387350 1391880 1491300 1553832 1618575 1670256 1726480 1739850 1849800 1942290 1988400 2087820 2158100 2219760 2319800 2589720 2609775 2774700 2783760 2982600 3107664 3237150 3479700 3699600 3884580 4175640 4316200 4639600 4855725 5108531 5179440 5219550 5549400 5965200 6474300 6959400 7769160 8351280 8632400 9711450 10217062 10439100 11098800 12948600 13918800 15325593 15538320 19422900 20434124 20878200 25542655 25897200 30651186 35759717 38845800 40868248 41756400 45976779 51085310 61302372 71519434 76627965 77691600 81736496 91953558 102170620 107279151 122604744 127713275 143038868 153255930 178798585 183907116 204341240 214558302 229883895 245209488 255426550 286077736 306511860 321837453 357597170 367814232 383139825 408682480 429116604 459767790 510853100 536395755 572155472 613023720 643674906 715194340 735628464 766279650 858233208 893992925 919535580 1021706200 1072791510 1149419475 1226047440 1287349812 1430388680 1532559300 1609187265 1716466416 1787985850 1839071160 2043412400 2145583020 2298838950 2574699624 2681978775 2860777360 3065118600 3218374530 3575971700 3678142320 4291166040 4597677900 5149399248 5363957550 6130237200 6436749060 7151943400 8045936325 8582332080 9195355800 10727915100 12873498120 14303886800 16091872650 18390711600 21455830200 25746996240 32183745300 42911660400 64367490600 128734981200
• Sum of all divisors σ(n): 511040856768
• Sum of proper divisors (its aliquot sum) s(n): 382305875568
• 128734981200 is an abundant number, because the sum of its proper divisors (382305875568) is greater than itself. Its abundance is 253570894368

Bases of 128734981200

• Binary: 1110111111001001100111110110001010000₂
• Hexadecimal: 0x1DF933EC50
• Base-36: 1N51HF80

Squares and roots of 128734981200

• 128734981200 squared (128734981200²) is 16572695384564353440000
• 128734981200 cubed (128734981200³) is 2133485628765218810288555328000000
• The square root of 128734981200 is 358796.5735622349
• The cube root of 128734981200 is 5049.3118194347

Scales and comparisons

• 128,734,981,200 seconds is equal to 4,093 years, 19 weeks, 3 days, 5 hours.
• To count from 1 to 128,734,981,200 would take you about eight thousand, one hundred eighty-six 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 128734981200 cubic inches would be around 420.8 feet tall.

Recreational maths with 128734981200

• 128734981200 backwards is 002189437821
• 128734981200 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128734981200's digits is 45
• More coming soon!