12768157920

Names of 12768157920

• Cardinal: 12768157920 can be written as Twelve billion, seven hundred sixty-eight million, one hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.276815792 × 10¹⁰

Factors of 12768157920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 71769

Divisors of 12768157920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 53 56 60 70 80 84 96 105 106 112 120 140 159 160 168 210 212 224 240 265 280 318 336 371 420 424 480 530 560 636 672 742 795 840 848 1060 1113 1120 1272 1484 1590 1680 1696 1855 2120 2226 2544 2968 3180 3360 3710 4240 4452 5088 5565 5936 6360 7420 8480 8904 11130 11872 12720 14840 17808 22260 25440 29680 35616 44520 59360 71699 89040 143398 178080 215097 286796 358495 430194 501893 573592 716990 860388 1003786 1075485 1147184 1433980 1505679 1720776 2007572 2150970 2294368 2509465 2867960 3011358 3441552 3800047 4015144 4301940 5018930 5735920 6022716 6883104 7528395 7600094 8030288 8603880 10037860 11400141 11471840 12045432 15056790 15200188 16060576 17207760 19000235 20075720 22800282 24090864 26600329 30113580 30400376 34415520 38000470 40151440 45600564 48181728 53200658 57000705 60227160 60800752 76000940 79800987 80302880 91201128 106401316 114001410 120454320 121601504 133001645 152001880 159601974 182402256 212802632 228002820 240908640 266003290 304003760 319203948 364804512 399004935 425605264 456005640 532006580 608007520 638407896 798009870 851210528 912011280 1064013160 1276815792 1596019740 1824022560 2128026320 2553631584 3192039480 4256052640 6384078960 12768157920
• Sum of all divisors σ(n): 46833292800
• Sum of proper divisors (its aliquot sum) s(n): 34065134880
• 12768157920 is an abundant number, because the sum of its proper divisors (34065134880) is greater than itself. Its abundance is 21296976960

Bases of 12768157920

• Binary: 1011111001000010101010000011100000₂
• Hexadecimal: 0x2F90AA0E0
• Base-36: 5V5TXPC

Squares and roots of 12768157920

• 12768157920 squared (12768157920²) is 163025856670058726400
• 12768157920 cubed (12768157920³) is 2081539883006595154349273088000
• The square root of 12768157920 is 112996.2739208687
• The cube root of 12768157920 is 2337.2728547427

Scales and comparisons

• 12,768,157,920 seconds is equal to 405 years, 51 weeks, 2 days, 14 hours, 32 minutes.
• To count from 1 to 12,768,157,920 would take you about eight hundred eleven 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 12768157920 cubic inches would be around 194.8 feet tall.

Recreational maths with 12768157920

• 12768157920 backwards is 02975186721
• 12768157920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12768157920's digits is 48
• More coming soon!