128829930880

Names of 128829930880

• Cardinal: 128829930880 can be written as One hundred twenty-eight billion, eight hundred twenty-nine million, nine hundred thirty thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.2882993088 × 10¹¹

Factors of 128829930880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2665

Divisors of 128829930880

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 61 64 70 80 112 122 128 140 160 197 224 244 280 305 320 394 427 448 488 560 610 640 788 854 896 976 985 1120 1220 1379 1576 1708 1952 1970 2135 2240 2393 2440 2758 3152 3416 3904 3940 4270 4480 4786 4880 5516 6304 6832 6895 7808 7880 8540 9572 9760 11032 11965 12017 12608 13664 13790 15760 16751 17080 19144 19520 22064 23930 24034 25216 27328 27580 31520 33502 34160 38288 39040 44128 47860 48068 54656 55160 60085 63040 67004 68320 76576 83755 84119 88256 95720 96136 110320 120170 126080 134008 136640 145973 153152 167510 168238 176512 191440 192272 220640 240340 268016 273280 291946 306304 335020 336476 382880 384544 420595 441280 471421 480680 536032 583892 670040 672952 729865 765760 769088 841190 882560 942842 961360 1021811 1072064 1167784 1340080 1345904 1459730 1531520 1538176 1682380 1885684 1922720 2043622 2144128 2335568 2357105 2680160 2691808 2919460 3299947 3364760 3771368 3845440 4087244 4671136 4714210 5109055 5360320 5383616 5838920 6599894 6729520 7542736 7690880 8174488 9342272 9428420 10218110 10720640 10767232 11677840 13199788 13459040 15085472 16348976 16499735 18684544 18856840 20436220 23355680 26399576 26918080 28756681 30170944 32697952 32999470 37713680 40872440 46711360 52799152 53836160 57513362 60341888 65395904 65998940 75427360 81744880 93422720 105598304 115026724 130791808 131997880 143783405 150854720 163489760 201296767 211196608 230053448 263995760 287566810 301709440 326979520 402593534 422393216 460106896 527991520 575133620 653959040 805187068 920213792 1006483835 1055983040 1150267240 1610374136 1840427584 2012967670 2111966080 2300534480 3220748272 3680855168 4025935340 4601068960 6441496544 8051870680 9202137920 12882993088 16103741360 18404275840 25765986176 32207482720 64414965440 128829930880
• Sum of all divisors σ(n): 359718226560
• Sum of proper divisors (its aliquot sum) s(n): 230888295680
• 128829930880 is an abundant number, because the sum of its proper divisors (230888295680) is greater than itself. Its abundance is 102058364800

Bases of 128829930880

• Binary: 1110111111110110111001011110110000000₂
• Hexadecimal: 0x1DFEDCBD80
• Base-36: 1N6M0IV4

Squares and roots of 128829930880

• 128829930880 squared (128829930880²) is 16597151090545577574400
• 128829930880 cubed (128829930880³) is 2138209827799903380399630057472000
• The square root of 128829930880 is 358928.8660445131
• The cube root of 128829930880 is 5050.5529032899

Scales and comparisons

• 128,829,930,880 seconds is equal to 4,096 years, 20 weeks, 3 days, 3 hours, 54 minutes, 40 seconds.
• To count from 1 to 128,829,930,880 would take you about eight thousand, one hundred ninety-two 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 128829930880 cubic inches would be around 420.9 feet tall.

Recreational maths with 128829930880

• 128829930880 backwards is 088039928821
• The number of decimal digits it has is: 12
• The sum of 128829930880's digits is 58
• More coming soon!