2121918920

Names of 2121918920

• Cardinal: 2121918920 can be written as Two billion, one hundred twenty-one million, nine hundred eighteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.12191892 × 10⁹

Factors of 2121918920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 113

Divisors of 2121918920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 17 20 22 34 37 40 41 44 55 68 74 82 85 88 110 121 136 148 164 170 185 187 205 220 242 289 296 328 340 370 374 407 410 440 451 484 578 605 629 680 697 740 748 814 820 902 935 968 1156 1210 1258 1394 1445 1480 1496 1517 1628 1640 1804 1870 2035 2057 2255 2312 2420 2516 2788 2890 3034 3145 3179 3256 3485 3608 3740 4070 4114 4477 4510 4840 4961 5032 5576 5780 6068 6290 6358 6919 6970 7480 7585 7667 8140 8228 8954 9020 9922 10285 10693 11560 11849 12136 12580 12716 13838 13940 15170 15334 15895 16280 16456 16687 17908 18040 19844 20570 21386 22385 23698 24805 25160 25432 25789 27676 27880 30340 30668 31790 33374 34595 34969 35816 38335 39688 41140 42772 44770 47396 49610 51578 53465 55352 59245 60680 61336 63580 66748 69190 69938 76109 76670 82280 83435 84337 85544 89540 94792 99220 103156 106930 117623 118490 127160 128945 130339 133496 138380 139876 152218 153340 166870 168674 174845 179080 183557 198440 206312 213860 235246 236980 257890 260678 276760 279752 283679 304436 306680 333740 337348 349690 367114 380545 421685 427720 438413 470492 473960 515780 521356 567358 588115 608872 651695 667480 674696 699380 734228 761090 843370 876826 917785 940984 1031560 1042712 1134716 1176230 1293853 1303390 1398760 1418395 1433729 1468456 1522180 1686740 1753652 1835570 2192065 2269432 2352460 2587706 2606780 2836790 2867458 3044360 3120469 3373480 3507304 3671140 4384130 4704920 4822543 5175412 5213560 5673580 5734916 6240938 6469265 7168645 7342280 8768260 9645086 10350824 11347160 11469832 12481876 12938530 14337290 15602345 17536520 19290172 24112715 24963752 25877060 28674580 31204690 38580344 48225430 51754120 53047973 57349160 62409380 96450860 106095946 124818760 192901720 212191892 265239865 424383784 530479730 1060959460 2121918920
• Sum of all divisors σ(n): 5864964840
• Sum of proper divisors (its aliquot sum) s(n): 3743045920
• 2121918920 is an abundant number, because the sum of its proper divisors (3743045920) is greater than itself. Its abundance is 1621127000

Bases of 2121918920

• Binary: 1111110011110011110100111001000₂
• Hexadecimal: 0x7E79E9C8
• Base-36: Z3C348

Squares and roots of 2121918920

• 2121918920 squared (2121918920²) is 4502539903053966400
• 2121918920 cubed (2121918920³) is 9554024608345177085204288000
• The square root of 2121918920 is 46064.2911592049
• The cube root of 2121918920 is 1285.0191360129

Scales and comparisons

• 2,121,918,920 seconds is equal to 67 years, 24 weeks, 3 days, 5 hours, 55 minutes, 20 seconds.
• To count from 1 to 2,121,918,920 would take you about one hundred thirty-four 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 2121918920 cubic inches would be around 107.1 feet tall.

Recreational maths with 2121918920

• 2121918920 backwards is 0298191212
• The number of decimal digits it has is: 10
• The sum of 2121918920's digits is 35
• More coming soon!