129664634840

Names of 129664634840

• Cardinal: 129664634840 can be written as One hundred twenty-nine billion, six hundred sixty-four million, six hundred thirty-four thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.2966463484 × 10¹¹

Factors of 129664634840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 11876

Divisors of 129664634840

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 40 52 65 104 130 169 260 338 520 676 845 1352 1690 1933 3380 3866 6760 7732 9665 9923 15464 19330 19846 25129 38660 39692 49615 50258 77320 79384 99230 100516 125645 128999 198460 201032 251290 257998 326677 396920 502580 515996 644995 653354 1005160 1031992 1289990 1306708 1633385 1676987 2579980 2613416 3266770 3353974 5159960 6533540 6707948 8384935 13067080 13415896 16769870 19181159 33539740 38362318 67079480 76724636 95905795 153449272 191811590 249355067 383623180 498710134 767246360 997420268 1246775335 1994840536 2493550670 3241615871 4987101340 6483231742 9974202680 12966463484 16208079355 25932926968 32416158710 64832317420 129664634840
• Sum of all divisors σ(n): 316108973520
• Sum of proper divisors (its aliquot sum) s(n): 186444338680
• 129664634840 is an abundant number, because the sum of its proper divisors (186444338680) is greater than itself. Its abundance is 56779703840

Bases of 129664634840

• Binary: 1111000110000100111010100111111011000₂
• Hexadecimal: 0x1E309D4FD8
• Base-36: 1NKEZ4K8

Squares and roots of 129664634840

• 129664634840 squared (129664634840²) is 16812917528190541825600
• 129664634840 cubed (129664634840³) is 2180040811887862011758170963904000
• The square root of 129664634840 is 360089.7594211755
• The cube root of 129664634840 is 5061.4371349459

Scales and comparisons

• 129,664,634,840 seconds is equal to 4,122 years, 48 weeks, 4 days, 2 hours, 7 minutes, 20 seconds.
• To count from 1 to 129,664,634,840 would take you about eight thousand, two hundred forty-five 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 129664634840 cubic inches would be around 421.8 feet tall.

Recreational maths with 129664634840

• 129664634840 backwards is 048436466921
• The number of decimal digits it has is: 12
• The sum of 129664634840's digits is 53
• More coming soon!