129712525920

Names of 129712525920

• Cardinal: 129712525920 can be written as One hundred twenty-nine billion, seven hundred twelve million, five hundred twenty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.2971252592 × 10¹¹

Factors of 129712525920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2012

Divisors of 129712525920

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 32 36 40 45 46 48 60 69 72 80 90 92 96 115 120 138 144 160 180 184 207 230 240 276 288 345 360 368 414 460 480 552 690 720 736 828 920 1035 1104 1380 1440 1656 1840 1979 2070 2208 2760 3312 3680 3958 4140 5520 5937 6624 7916 8280 9895 11040 11874 15832 16560 17811 19790 23748 29685 31664 33120 35622 39580 45517 47496 59370 63328 71244 79160 89055 91034 94992 118740 136551 142488 158320 178110 182068 189984 227585 237480 273102 284976 316640 356220 364136 409653 455170 474960 546204 569952 682755 712440 728272 819306 910340 949920 1092408 1365510 1424880 1456544 1638612 1820680 2048265 2184816 2731020 2849760 3277224 3641360 3916441 4096530 4369632 5462040 6554448 7282720 7832882 8193060 10924080 11749323 13108896 15665764 16386120 19582205 21848160 23498646 31331528 32772240 35247969 39164410 46997292 58746615 62663056 65544480 70495938 78328820 90078143 93994584 117493230 125326112 140991876 156657640 176239845 180156286 187989168 234986460 270234429 281983752 313315280 352479690 360312572 375978336 450390715 469972920 540468858 563967504 626630560 704959380 720625144 810703287 900781430 939945840 1080937716 1127935008 1351172145 1409918760 1441250288 1621406574 1801562860 1879891680 2161875432 2702344290 2819837520 2882500576 3242813148 3603125720 4053516435 4323750864 5404688580 5639675040 6485626296 7206251440 8107032870 8647501728 10809377160 12971252592 14412502880 16214065740 21618754320 25942505184 32428131480 43237508640 64856262960 129712525920
• Sum of all divisors σ(n): 462122899056
• Sum of proper divisors (its aliquot sum) s(n): 332410373136
• 129712525920 is an abundant number, because the sum of its proper divisors (332410373136) is greater than itself. Its abundance is 202697847216

Bases of 129712525920

• Binary: 1111000110011011110000001001001100000₂
• Hexadecimal: 0x1E33781260
• Base-36: 1NL7HLK0

Squares and roots of 129712525920

• 129712525920 squared (129712525920²) is 16825339380546671846400
• 129712525920 cubed (129712525920³) is 2182457270511956915645894258688000
• The square root of 129712525920 is 360156.2520906723
• The cube root of 129712525920 is 5062.0601983185

Scales and comparisons

• 129,712,525,920 seconds is equal to 4,124 years, 23 weeks, 5 days, 9 hours, 12 minutes.
• To count from 1 to 129,712,525,920 would take you about eight thousand, two 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 129712525920 cubic inches would be around 421.8 feet tall.

Recreational maths with 129712525920

• 129712525920 backwards is 029525217921
• 129712525920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129712525920's digits is 45
• More coming soon!