121657645890

Names of 121657645890

• Cardinal: 121657645890 can be written as One hundred twenty-one billion, six hundred fifty-seven million, six hundred forty-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.2165764589 × 10¹¹

Factors of 121657645890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 233

Divisors of 121657645890

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 30 31 33 45 55 62 66 90 93 99 110 121 155 165 181 186 198 242 279 310 330 341 362 363 465 495 543 558 605 682 726 905 930 990 1023 1086 1089 1210 1331 1395 1629 1705 1810 1815 1991 2046 2178 2662 2715 2790 3069 3258 3410 3630 3751 3982 3993 5115 5430 5445 5611 5973 6138 6655 7502 7986 8145 9955 10230 10890 11222 11253 11946 11979 13310 15345 16290 16833 17919 18755 19910 19965 21901 22506 23958 28055 29865 30690 32761 33666 33759 35838 37510 39930 41261 43802 50499 56110 56265 59730 59895 61721 65522 65703 67518 82522 84165 89595 98283 100998 109505 112530 119790 123442 123783 131406 163805 168330 168795 179190 185163 196566 197109 206305 219010 240911 247566 252495 294849 308605 327610 328515 337590 360371 370326 371349 394218 412610 481822 491415 504990 555489 589698 617210 618915 657030 678931 720742 722733 742698 925815 982830 985545 1015591 1081113 1110978 1204555 1237830 1357862 1445466 1474245 1801855 1851630 1856745 1971090 2031182 2036793 2162226 2168199 2409110 2777445 2948490 3046773 3243339 3394655 3603710 3613665 3713490 3964081 4073586 4336398 5077955 5405565 5554890 6093546 6110379 6486678 6789310 7227330 7468241 7928162 9140319 10155910 10183965 10811130 10840995 11171501 11892243 12220758 14936482 15233865 16216695 18280638 19820405 20367930 21681990 22343002 22404723 23784486 30467730 30551895 32433390 33514503 35676729 37341205 39640810 43604891 44809446 45701595 55857505 59461215 61103790 67029006 67214169 71353458 74682410 87209782 91403190 100543509 111715010 112023615 118922430 122886511 130814673 134428338 167572515 178383645 201087018 218024455 224047230 245773022 261629346 335145030 336070845 356767290 368659533 392444019 436048910 502717545 614432555 654073365 672141690 737319066 784888038 1005435090 1105978599 1228865110 1308146730 1351751621 1843297665 1962220095 2211957198 2703503242 3686595330 3924440190 4055254863 5529892995 6758758105 8110509726 11059785990 12165764589 13517516210 20276274315 24331529178 40552548630 60828822945 121657645890
• Sum of all divisors σ(n): 361135397376
• Sum of proper divisors (its aliquot sum) s(n): 239477751486
• 121657645890 is an abundant number, because the sum of its proper divisors (239477751486) is greater than itself. Its abundance is 117820105596

Bases of 121657645890

• Binary: 1110001010011010111000101101101000010₂
• Hexadecimal: 0x1C535C5B42
• Base-36: 1JVZTKCI

Squares and roots of 121657645890

• 121657645890 squared (121657645890²) is 14800582803496633892100
• 121657645890 cubed (121657645890³) is 1800604061673416939852074268469000
• The square root of 121657645890 is 348794.5611531235
• The cube root of 121657645890 is 4955.0320679553

Scales and comparisons

• 121,657,645,890 seconds is equal to 3,868 years, 17 weeks, 3 days, 14 hours, 31 minutes, 30 seconds.
• To count from 1 to 121,657,645,890 would take you about seven thousand, seven hundred thirty-six 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 121657645890 cubic inches would be around 412.9 feet tall.

Recreational maths with 121657645890

• 121657645890 backwards is 098546756121
• The number of decimal digits it has is: 12
• The sum of 121657645890's digits is 54
• More coming soon!