129399712960

Names of 129399712960

• Cardinal: 129399712960 can be written as One hundred twenty-nine billion, three hundred ninety-nine million, seven hundred twelve thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 1.2939971296 × 10¹¹

Factors of 129399712960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1242

Divisors of 129399712960

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 41 56 64 70 80 82 112 140 160 164 205 224 280 287 320 328 410 448 560 574 656 820 1120 1148 1187 1312 1435 1640 2240 2296 2374 2624 2870 3280 4592 4748 5740 5935 6560 8309 9184 9496 11480 11870 13120 16618 18368 18992 22960 23740 33236 37984 41545 45920 47480 48667 66472 75968 83090 91840 94960 97334 132944 166180 189920 194668 243335 265888 332360 340669 379840 389336 486670 531776 664720 681338 778672 973340 1329440 1362676 1408969 1557344 1703345 1946680 2658880 2725352 2817938 3114688 3406690 3893360 5450704 5635876 6813380 7044845 7786720 9862783 10901408 11271752 13626760 14089690 15573440 19725566 21802816 22543504 27253520 28179380 39451132 45087008 49313915 54507040 56358760 57767729 78902264 90174016 98627830 109014080 112717520 115535458 157804528 197255660 225435040 231070916 288838645 315609056 394511320 404374103 450870080 462141832 577677290 631218112 789022640 808748206 924283664 1155354580 1578045280 1617496412 1848567328 2021870515 2310709160 3156090560 3234992824 3697134656 4043741030 4621418320 6469985648 8087482060 9242836640 12939971296 16174964120 18485673280 25879942592 32349928240 64699856480 129399712960
• Sum of all divisors σ(n): 361045317024
• Sum of proper divisors (its aliquot sum) s(n): 231645604064
• 129399712960 is an abundant number, because the sum of its proper divisors (231645604064) is greater than itself. Its abundance is 102245891104

Bases of 129399712960

• Binary: 1111000100000110100101110110011000000₂
• Hexadecimal: 0x1E20D2ECC0
• Base-36: 1NG18XJ4

Squares and roots of 129399712960

• 129399712960 squared (129399712960²) is 16744285714130391961600
• 129399712960 cubed (129399712960³) is 2166705765128701335843331342336000
• The square root of 129399712960 is 359721.7159972415
• The cube root of 129399712960 is 5057.9877243889

Scales and comparisons

• 129,399,712,960 seconds is equal to 4,114 years, 26 weeks, 3 days, 20 hours, 42 minutes, 40 seconds.
• To count from 1 to 129,399,712,960 would take you about eight thousand, two hundred twenty-nine 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 129399712960 cubic inches would be around 421.5 feet tall.

Recreational maths with 129399712960

• 129399712960 backwards is 069217993921
• The number of decimal digits it has is: 12
• The sum of 129399712960's digits is 58
• More coming soon!