128431949800

Names of 128431949800

• Cardinal: 128431949800 can be written as One hundred twenty-eight billion, four hundred thirty-one million, nine hundred forty-nine thousand, eight hundred.

Scientific notation

• Scientific notation: 1.284319498 × 10¹¹

Factors of 128431949800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 19617

Divisors of 128431949800

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 49 50 55 56 61 70 77 88 98 100 110 122 140 154 175 196 200 220 244 245 275 280 305 308 350 385 392 427 440 488 490 539 550 610 616 671 700 770 854 980 1078 1100 1220 1225 1342 1400 1525 1540 1708 1925 1960 2135 2156 2200 2440 2450 2684 2695 2989 3050 3080 3355 3416 3850 4270 4312 4697 4900 5368 5390 5978 6100 6710 7700 8540 9394 9800 10675 10780 11956 12200 13420 13475 14945 15400 16775 17080 18788 19531 21350 21560 23485 23912 26840 26950 29890 32879 33550 37576 39062 42700 46970 53900 59780 65758 67100 74725 78124 85400 93940 97655 107800 117425 119560 131516 134200 136717 149450 156248 164395 187880 195310 214841 234850 263032 273434 298900 328790 390620 429682 469700 488275 546868 597800 657580 683585 781240 821975 859364 939400 957019 976550 1074205 1093736 1191391 1315160 1367170 1503887 1643950 1718728 1914038 1953100 2148410 2382782 2734340 3007774 3287900 3417925 3828076 3906200 4296820 4765564 4785095 5371025 5468680 5956955 6015548 6575800 6835850 7519435 7656152 8339737 8593640 9531128 9570190 10527209 10742050 11913910 12031096 13105301 13671700 15038870 16679474 19140380 21054418 21484100 23827820 23925475 26210602 27343400 29784775 30077740 33358948 37597175 38280760 41698685 42108836 42968200 47655640 47850950 52421204 52636045 58378159 59569550 60155480 65526505 66717896 75194350 83397370 84217672 91737107 95701900 104842408 105272090 116756318 119139100 131053010 150388700 166794740 183474214 191403800 208493425 210544180 233512636 238278200 262106020 263180225 291890795 300777400 327632525 333589480 366948428 416986850 421088360 458685535 467025272 524212040 526360450 583781590 642159749 655265050 733896856 833973700 917371070 1052720900 1167563180 1284319498 1310530100 1459453975 1667947400 1834742140 2105441800 2293427675 2335126360 2568638996 2621060200 2918907950 3210798745 3669484280 4586855350 5137277992 5837815900 6421597490 9173710700 11675631800 12843194980 16053993725 18347421400 25686389960 32107987450 64215974900 128431949800
• Sum of all divisors σ(n): 385165571040
• Sum of proper divisors (its aliquot sum) s(n): 256733621240
• 128431949800 is an abundant number, because the sum of its proper divisors (256733621240) is greater than itself. Its abundance is 128301671440

Bases of 128431949800

• Binary: 1110111100111001001000000011111101000₂
• Hexadecimal: 0x1DE72407E8
• Base-36: 1N012EP4

Squares and roots of 128431949800

• 128431949800 squared (128431949800²) is 16494765729429720040000
• 128431949800 cubed (128431949800³) is 2118454924124878186805333992000000
• The square root of 128431949800 is 358374.0361689167
• The cube root of 128431949800 is 5045.3468205307

Scales and comparisons

• 128,431,949,800 seconds is equal to 4,083 years, 38 weeks, 2 days, 21 hours, 36 minutes, 40 seconds.
• To count from 1 to 128,431,949,800 would take you about eight thousand, one hundred sixty-seven 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 128431949800 cubic inches would be around 420.4 feet tall.

Recreational maths with 128431949800

• 128431949800 backwards is 008949134821
• 128431949800 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128431949800's digits is 49
• More coming soon!