2121387840

Names of 2121387840

• Cardinal: 2121387840 can be written as Two billion, one hundred twenty-one million, three hundred eighty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.12138784 × 10⁹

Factors of 2121387840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 152

Divisors of 2121387840

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 16 17 18 20 22 24 26 27 30 32 33 34 36 39 40 44 45 48 51 52 54 55 60 64 65 66 68 72 78 80 85 88 90 96 99 101 102 104 108 110 117 120 130 132 135 136 143 144 153 156 160 165 170 176 180 187 192 195 198 202 204 208 216 220 221 234 240 255 260 264 270 272 286 288 297 303 306 312 320 330 340 351 352 360 374 390 396 404 408 416 429 432 440 442 459 468 480 495 505 510 520 528 540 544 561 572 576 585 594 606 612 624 660 663 680 702 704 715 720 748 765 780 792 808 816 832 858 864 880 884 909 918 935 936 960 990 1010 1020 1040 1056 1080 1088 1105 1111 1122 1144 1170 1188 1212 1224 1248 1287 1313 1320 1326 1360 1404 1430 1440 1485 1496 1515 1530 1560 1584 1616 1632 1683 1716 1717 1728 1755 1760 1768 1818 1836 1870 1872 1980 1989 2020 2040 2080 2112 2145 2160 2210 2222 2244 2288 2295 2340 2376 2424 2431 2448 2496 2574 2626 2640 2652 2720 2727 2805 2808 2860 2880 2970 2992 3030 3060 3120 3168 3232 3264 3315 3333 3366 3432 3434 3510 3520 3536 3636 3672 3740 3744 3861 3939 3960 3978 4040 4080 4160 4290 4320 4420 4444 4488 4545 4576 4590 4680 4752 4848 4862 4896 5049 5148 5151 5252 5280 5304 5440 5454 5555 5610 5616 5720 5940 5967 5984 6060 6120 6240 6336 6435 6464 6565 6630 6666 6732 6864 6868 7020 7072 7272 7293 7344 7480 7488 7722 7878 7920 7956 8080 8160 8415 8580 8585 8640 8840 8888 8976 9090 9152 9180 9360 9504 9696 9724 9792 9945 9999 10098 10296 10302 10504 10560 10608 10908 11110 11220 11232 11440 11817 11880 11934 11968 12120 12155 12240 12480 12870 13130 13260 13332 13464 13635 13728 13736 14040 14144 14443 14544 14586 14688 14960 15444 15453 15756 15840 15912 16160 16320 16665 16830 17160 17170 17680 17776 17952 18180 18360 18720 18887 19008 19305 19392 19448 19695 19890 19998 20196 20592 20604 21008 21216 21816 21879 22220 22321 22440 22464 22880 23634 23760 23868 24240 24310 24480 25245 25740 25755 26260 26520 26664 26928 27270 27456 27472 28080 28886 29088 29172 29376 29835 29920 29997 30888 30906 31512 31680 31824 32320 33330 33660 34320 34340 35360 35451 35552 35904 36360 36465 36720 37440 37774 38610 38896 39390 39780 39996 40392 41184 41208 42016 42432 43329 43632 43758 44440 44642 44880 45760 46359 47268 47520 47736 48480 48620 48960 49995 50490 51480 51510 52520 53040 53328 53856 54540 54944 56160 56661 57772 58176 58344 59085 59670 59840 59994 61776 61812 63024 63648 65637 66660 66963 67320 68640 68680 70720 70902 71104 72215 72720 72930 73440 75548 77220 77265 77792 78780 79560 79992 80784 82368 82416 84032 86658 87264 87516 88880 89284 89760 92718 94435 94536 95040 95472 96960 97240 99990 100980 102960 103020 105040 106080 106656 107712 109080 109395 109888 111605 112320 113322 115544 116688 118170 119340 119988 123552 123624 126048 127296 129987 131274 133320 133926 134640 137280 137360 141804 144430 145440 145860 146880 149985 151096 154440 154530 155584 157560 159120 159984 161568 164832 169983 173316 174528 175032 177255 177760 178568 179520 185436 188870 189072 190944 194480 199980 200889 201960 205920 206040 210080 212160 213312 216645 218160 218790 223210 226644 231088 231795 233376 236340 238680 239976 245531 247104 247248 252096 259974 262548 266640 267852 269280 274720 283305 283608 288860 290880 291720 299970 302192 308880 309060 315120 318240 319968 323136 328185 329664 334815 339966 346632 350064 354510 355520 357136 370872 377740 378144 381888 388960 389961 399960 401778 403920 411840 412080 420160 433290 436320 437580 446420 453288 462176 463590 466752 472680 477360 479952 491062 494496 509949 519948 525096 533280 535704 538560 549440 566610 567216 577720 583440 599940 602667 604384 617760 618120 630240 636480 639936 649935 656370 669630 679932 693264 700128 709020 714272 736593 741744 755480 756288 777920 779922 799920 803556 807840 824160 849915 866580 872640 875160 892840 906576 924352 927180 945360 954720 959904 982124 988992 1004445 1019898 1039896 1050192 1066560 1071408 1133220 1134432 1155440 1166880 1199880 1205334 1208768 1227655 1235520 1236240 1260480 1299870 1312740 1339260 1359864 1386528 1400256 1418040 1428544 1473186 1483488 1510960 1559844 1599840 1607112 1615680 1648320 1699830 1733160 1750320 1785680 1813152 1854360 1890720 1909440 1919808 1949805 1964248 2008890 2039796 2079792 2100384 2142816 2209779 2266440 2268864 2310880 2333760 2399760 2410668 2455310 2472480 2549745 2599740 2625480 2678520 2719728 2773056 2836080 2946372 2966976 3013335 3021920 3119688 3199680 3214224 3399660 3466320 3500640 3571360 3626304 3682965 3708720 3781440 3899610 3928496 4017780 4079592 4159584 4200768 4285632 4419558 4532880 4621760 4799520 4821336 4910620 4944960 5099490 5199480 5250960 5357040 5439456 5672160 5892744 6026670 6043840 6239376 6428448 6629337 6799320 6932640 7001280 7142720 7365930 7417440 7799220 7856992 8035560 8159184 8319168 8839116 9065760 9599040 9642672 9821240 10198980 10398960 10501920 10714080 10878912 11048895 11344320 11785488 12053340 12478752 12856896 13258674 13598640 13865280 14731860 14834880 15598440 15713984 16071120 16318368 17678232 18131520 19285344 19642480 20397960 20797920 21003840 21428160 22097790 23570976 24106680 24957504 26517348 27197280 29463720 31196880 32142240 32636736 33146685 35356464 38570688 39284960 40795920 41595840 44195580 47141952 48213360 53034696 54394560 58927440 62393760 64284480 66293370 70712928 78569920 81591840 88391160 96426720 106069392 117854880 124787520 132586740 141425856 163183680 176782320 192853440 212138784 235709760 265173480 353564640 424277568 530346960 707129280 1060693920 2121387840
• Sum of all divisors σ(n): 9401495040
• Sum of proper divisors (its aliquot sum) s(n): 7280107200
• 2121387840 is an abundant number, because the sum of its proper divisors (7280107200) is greater than itself. Its abundance is 5158719360

Bases of 2121387840

• Binary: 1111110011100011100111101000000₂
• Hexadecimal: 0x7E71CF40
• Base-36: Z30PC0

Squares and roots of 2121387840

• 2121387840 squared (2121387840²) is 4500286367699865600
• 2121387840 cubed (2121387840³) is 9546852776956263653474304000
• The square root of 2121387840 is 46058.5262465051
• The cube root of 2121387840 is 1284.9119209667

Scales and comparisons

• 2,121,387,840 seconds is equal to 67 years, 23 weeks, 4 days, 2 hours, 24 minutes.
• To count from 1 to 2,121,387,840 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 2121387840 cubic inches would be around 107.1 feet tall.

Recreational maths with 2121387840

• 2121387840 backwards is 0487831212
• 2121387840 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2121387840's digits is 36
• More coming soon!