128137367680

Names of 128137367680

• Cardinal: 128137367680 can be written as One hundred twenty-eight billion, one hundred thirty-seven million, three hundred sixty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2813736768 × 10¹¹

Factors of 128137367680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 140940

Divisors of 128137367680

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 29 32 35 40 49 56 58 64 70 80 98 112 116 128 140 145 160 196 203 224 232 245 280 290 320 392 406 448 464 490 560 580 640 784 812 896 928 980 1015 1120 1160 1421 1568 1624 1856 1960 2030 2240 2320 2842 3136 3248 3712 3920 4060 4480 4640 5684 6272 6496 7105 7840 8120 9280 11368 12992 14210 15680 16240 18560 22736 25984 28420 31360 32480 45472 56840 64960 90944 113680 129920 140897 181888 227360 281794 454720 563588 704485 909440 986279 1127176 1408970 1972558 2254352 2817940 3945116 4086013 4508704 4931395 5635880 6903953 7890232 8172026 9017408 9862790 11271760 13807906 15780464 16344052 18034816 19725580 20430065 22543520 27615812 28602091 31560928 32688104 34519765 39451160 40860130 45087040 55231624 57204182 63121856 65376208 69039530 78902320 81720260 90174080 110463248 114408364 126243712 130752416 138079060 143010455 157804640 163440520 200214637 220926496 228816728 261504832 276158120 286020910 315609280 326881040 400429274 441852992 457633456 523009664 552316240 572041820 631218560 653762080 800858548 883705984 915266912 1001073185 1104632480 1144083640 1307524160 1601717096 1830533824 2002146370 2209264960 2288167280 2615048320 3203434192 3661067648 4004292740 4418529920 4576334560 6406868384 8008585480 9152669120 12813736768 16017170960 18305338240 25627473536 32034341920 64068683840 128137367680
• Sum of all divisors σ(n): 368631437400
• Sum of proper divisors (its aliquot sum) s(n): 240494069720
• 128137367680 is an abundant number, because the sum of its proper divisors (240494069720) is greater than itself. Its abundance is 112356702040

Bases of 128137367680

• Binary: 1110111010101100101010001000010000000₂
• Hexadecimal: 0x1DD5951080
• Base-36: 1MV5OHOG

Squares and roots of 128137367680

• 128137367680 squared (128137367680²) is 16419184995959508582400
• 128137367680 cubed (128137367680³) is 2103911144833202865615104376832000
• The square root of 128137367680 is 357962.8020898261
• The cube root of 128137367680 is 5041.4863928669

Scales and comparisons

• 128,137,367,680 seconds is equal to 4,074 years, 19 weeks, 2 days, 9 hours, 14 minutes, 40 seconds.
• To count from 1 to 128,137,367,680 would take you about eight thousand, one hundred forty-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 128137367680 cubic inches would be around 420.1 feet tall.

Recreational maths with 128137367680

• 128137367680 backwards is 086763731821
• The number of decimal digits it has is: 12
• The sum of 128137367680's digits is 52
• More coming soon!