128810721741429

Names of 128810721741429

• Cardinal: 128810721741429 can be written as One hundred twenty-eight trillion, eight hundred ten billion, seven hundred twenty-one million, seven hundred forty-one thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 1.28810721741429 × 10¹⁴

Factors of 128810721741429

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 263342

Divisors of 128810721741429

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 13 21 39 49 61 91 147 183 273 343 427 601 637 793 1029 1281 1803 1911 2379 2989 4207 4459 5551 7813 8967 12621 13377 16653 20923 23439 29449 36661 38857 54691 62769 88347 109983 116571 164073 206143 256627 262657 271999 382837 476593 618429 769881 787971 815997 1148511 1429779 1796389 1838599 2679859 3336151 3414541 5389167 5515797 8039577 10008453 10243623 12574723 12870193 16022077 23353057 23901787 37724169 38610579 48066231 70059171 71705361 90091351 112154539 157856857 163471399 167312509 208287001 270274053 336463617 473570571 490414197 501937527 624861003 785081773 1104997999 1171187563 1458009007 2052139141 2355245319 3314993997 3513562689 4374027021 5495572411 6156417423 7734985993 9629268277 10206063049 14364973987 16486717233 23204957979 28887804831 30618189147 43094921961 54144901951 67404877939 71442441343 100554817909 125180487601 162434705853 202214633817 214327324029 301664453727 375541462803 471834145573 703883725363 876263413207 1415502436719 2111651176089 2628790239621 3302839019011 6133843892449 9908517057033 18401531677347 42936907247143 128810721741429
• Sum of all divisors σ(n): 219597217100800
• Sum of proper divisors (its aliquot sum) s(n): 90786495359371
• 128810721741429 is a deficient number, because the sum of its proper divisors (90786495359371) is less than itself. Its deficiency is 38024226382058

Bases of 128810721741429

• Binary: 11101010010011100010101010100000000101001110101₂
• Hexadecimal: 0x752715500A75
• Base-36: 19NQTTXI0L

Squares and roots of 128810721741429

• 128810721741429 squared (128810721741429²) is 16592202035547849670334962041
• 128810721741429 cubed (128810721741429³) is 2137253519478525909049665405235622132096589
• The square root of 128810721741429 is 11349481.1221231167
• The cube root of 128810721741429 is 50503.0187054661

Scales and comparisons

• 128,810,721,741,429 seconds is equal to 4,095,782 years, 26 weeks, 4 days, 23 hours, 17 minutes, 9 seconds.
• To count from 1 to 128,810,721,741,429 would take you about ten million, two hundred thirty-nine thousand, four hundred fifty-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 128810721741429 cubic inches would be around 4208.6 feet tall.

Recreational maths with 128810721741429

• 128810721741429 backwards is 924147127018821
• The number of decimal digits it has is: 15
• The sum of 128810721741429's digits is 57
• More coming soon!