161555230720

Names of 161555230720

• Cardinal: 161555230720 can be written as One hundred sixty-one billion, five hundred fifty-five million, two hundred thirty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.6155523072 × 10¹¹

Factors of 161555230720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 441

Divisors of 161555230720

• Number of divisors d(n): 416
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 26 32 38 40 52 64 65 76 80 95 104 109 128 130 152 160 190 208 218 247 256 260 293 304 320 380 416 436 494 512 520 545 586 608 640 760 832 872 988 1024 1040 1090 1172 1216 1235 1280 1417 1465 1520 1664 1744 1976 2048 2071 2080 2180 2344 2432 2470 2560 2834 2930 3040 3328 3488 3809 3952 4096 4142 4160 4360 4688 4864 4940 5120 5567 5668 5860 6080 6656 6976 7085 7618 7904 8284 8320 8720 9376 9728 9880 10240 10355 11134 11336 11720 12160 13312 13952 14170 15236 15808 16568 16640 17440 18752 19045 19456 19760 20480 20710 22268 22672 23440 24320 26624 26923 27835 27904 28340 30472 31616 31937 33136 33280 34880 37504 38090 38912 39520 41420 44536 45344 46880 48640 53248 53846 55670 55808 56680 60944 63232 63874 66272 66560 69760 72371 75008 76180 77824 79040 82840 89072 90688 93760 97280 107692 111340 111616 113360 121888 126464 127748 132544 133120 134615 139520 144742 150016 152360 158080 159685 165680 178144 181376 187520 194560 215384 222680 223232 226720 243776 252928 255496 265088 266240 269230 279040 289484 300032 304720 316160 319370 331360 356288 361855 362752 375040 389120 415181 430768 445360 446464 453440 487552 505856 510992 530176 538460 558080 578968 600064 606803 609440 632320 638740 662720 712576 723710 725504 750080 830362 861536 890720 906880 975104 1011712 1021984 1060352 1076920 1116160 1157936 1200128 1213606 1218880 1264640 1277480 1325440 1425152 1447420 1451008 1500160 1660724 1723072 1781440 1813760 1950208 2043968 2075905 2120704 2153840 2232320 2315872 2427212 2437760 2529280 2554960 2650880 2850304 2894840 2902016 3000320 3034015 3321448 3446144 3562880 3627520 3900416 4087936 4151810 4241408 4307680 4631744 4854424 4875520 5058560 5109920 5301760 5700608 5789680 5804032 6000640 6068030 6642896 6892288 7125760 7255040 7800832 7888439 8175872 8303620 8482816 8615360 9263488 9708848 9751040 10219840 10603520 11401216 11579360 12136060 13285792 13784576 14251520 14510080 15601664 15776878 16351744 16607240 17230720 18526976 19417696 19502080 20439680 21207040 22802432 23158720 24272120 26571584 27569152 28503040 29020160 31553756 32703488 33214480 34461440 37053952 38835392 39004160 39442195 40879360 42414080 46317440 48544240 53143168 55138304 57006080 63107512 65406976 66428960 68922880 74107904 77670784 78008320 78884390 81758720 92634880 97088480 106286336 110276608 114012160 126215024 130813952 132857920 137845760 148215808 155341568 157768780 163517440 185269760 194176960 212572672 252430048 265715840 275691520 296431616 310683136 315537560 327034880 370539520 388353920 425145344 504860096 531431680 551383040 621366272 631075120 654069760 741079040 776707840 850290688 1009720192 1062863360 1242732544 1262150240 1482158080 1553415680 1700581376 2019440384 2125726720 2485465088 2524300480 3106831360 4038880768 4251453440 5048600960 6213662720 8077761536 8502906880 10097201920 12427325440 16155523072 20194403840 32311046144 40388807680 80777615360 161555230720
• Sum of all divisors σ(n): 445026859200
• Sum of proper divisors (its aliquot sum) s(n): 283471628480
• 161555230720 is an abundant number, because the sum of its proper divisors (283471628480) is greater than itself. Its abundance is 121916397760

Bases of 161555230720

• Binary: 10010110011101011100010011000000000000₂
• Hexadecimal: 0x259D713000
• Base-36: 227TT9TS

Squares and roots of 161555230720

• 161555230720 squared (161555230720²) is 26100092572992431718400
• 161555230720 cubed (161555230720³) is 4216606477443150747079958069248000
• The square root of 161555230720 is 401939.3371144455
• The cube root of 161555230720 is 5446.3683205811

Scales and comparisons

• 161,555,230,720 seconds is equal to 5,136 years, 49 weeks, 5 days, 4 hours, 58 minutes, 40 seconds.
• To count from 1 to 161,555,230,720 would take you about ten thousand, two hundred seventy-three 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 161555230720 cubic inches would be around 453.9 feet tall.

Recreational maths with 161555230720

• 161555230720 backwards is 027032555161
• The number of decimal digits it has is: 12
• The sum of 161555230720's digits is 37
• More coming soon!