31421393640

Names of 31421393640

• Cardinal: 31421393640 can be written as Thirty-one billion, four hundred twenty-one million, three hundred ninety-three thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.142139364 × 10¹⁰

Factors of 31421393640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 199

Divisors of 31421393640

• Number of divisors d(n): 1280
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 19 20 21 24 26 27 28 30 35 36 38 39 40 42 45 52 54 56 57 60 63 65 70 71 72 76 78 79 81 84 90 91 95 104 105 108 114 117 120 126 130 133 135 140 142 152 156 158 162 168 171 180 182 189 190 195 210 213 216 228 234 237 247 252 260 266 270 273 280 284 285 312 315 316 324 342 351 355 360 364 378 380 390 395 399 405 420 426 455 456 468 474 494 497 504 513 520 532 540 546 553 567 568 570 585 630 632 639 648 665 684 702 710 711 728 741 756 760 780 790 798 810 819 840 852 855 910 923 936 945 948 988 994 1026 1027 1053 1064 1065 1080 1092 1106 1134 1140 1170 1185 1197 1235 1260 1278 1330 1349 1365 1368 1404 1420 1422 1482 1491 1501 1512 1539 1560 1580 1596 1620 1638 1659 1704 1710 1729 1755 1820 1846 1890 1896 1917 1976 1988 1995 2052 2054 2106 2130 2133 2184 2212 2223 2268 2280 2340 2370 2394 2457 2470 2485 2520 2556 2565 2660 2698 2730 2765 2769 2808 2835 2840 2844 2964 2982 3002 3078 3081 3160 3192 3195 3240 3276 3318 3420 3458 3510 3555 3591 3640 3692 3705 3780 3834 3976 3990 4047 4095 4104 4108 4212 4260 4266 4424 4446 4473 4503 4536 4615 4680 4740 4788 4914 4940 4970 4977 5112 5130 5135 5187 5265 5320 5396 5460 5530 5538 5609 5670 5688 5751 5928 5964 5985 6004 6156 6162 6390 6399 6461 6552 6636 6669 6745 6840 6916 7020 7110 7182 7189 7371 7384 7410 7455 7505 7560 7668 7695 7980 8094 8190 8216 8295 8307 8424 8520 8532 8645 8892 8946 9006 9230 9243 9443 9480 9576 9585 9828 9880 9940 9954 10260 10270 10374 10507 10530 10665 10773 10792 10920 11060 11076 11115 11218 11340 11502 11928 11970 12008 12141 12285 12312 12324 12780 12798 12922 13272 13338 13419 13490 13509 13832 13845 14040 14220 14364 14378 14742 14820 14910 14931 15010 15336 15390 15405 15561 15960 16188 16380 16590 16614 16827 17064 17290 17537 17784 17892 17955 18012 18460 18486 18886 19170 19383 19513 19656 19880 19908 20007 20235 20520 20540 20748 21014 21060 21330 21546 21567 22120 22152 22230 22365 22436 22515 22680 23004 23940 24282 24570 24648 24885 24921 25560 25596 25844 25935 26676 26838 26980 27018 27690 27729 28045 28329 28440 28728 28755 28756 29484 29640 29820 29862 30020 30780 30810 31122 31521 31995 32305 32376 32760 33180 33228 33345 33654 34580 35074 35784 35910 35945 36024 36423 36855 36920 36972 37772 38340 38766 39026 39263 39816 40014 40257 40470 40527 41080 41496 41535 42028 42120 42660 43092 43134 44460 44730 44793 44872 45030 46008 46215 46683 47215 47880 48564 49140 49770 49842 50481 51192 51688 51870 52535 52611 53352 53676 53865 53960 54036 55380 55458 56090 56658 57510 57512 58149 58539 58968 59640 59724 60040 60705 61560 61620 62244 63042 63990 64610 64701 66360 66456 66690 67095 67308 67545 69160 70148 71820 71890 72846 72917 73710 73944 74655 74763 75544 76680 77532 77805 78052 78526 80028 80514 80940 81054 83070 83187 84056 84135 84987 85320 86184 86268 87685 88920 89460 89586 90060 92430 93366 94430 94563 96915 97128 97565 98280 99540 99684 100035 100962 103740 105070 105222 106571 107352 107730 107835 108072 109269 110760 110916 112180 113316 115020 116298 117078 117789 119448 121410 121581 122759 123240 124488 124605 126084 127980 129220 129402 133380 134190 134616 135090 136591 138645 140049 140296 141645 143640 143780 145692 145834 147420 149310 149526 151443 155064 155610 156104 157052 157605 157833 160056 161028 161880 162108 166140 166374 168270 169974 172536 174447 175370 175617 178920 179172 180120 182115 184860 186732 188860 189126 193830 194103 195130 196315 199080 199368 200070 201285 201924 202635 207480 210140 210444 213142 215460 215670 218538 218751 221832 223965 224360 226632 230040 232596 233415 234156 235578 242820 243162 245518 249210 252168 252405 254961 255960 258440 258804 263055 266760 268380 270180 273182 277290 280098 283290 283689 287560 290745 291384 291668 292695 294840 298620 299052 302886 311220 314104 315210 315666 319713 322056 323505 324216 332280 332748 336540 339948 348894 350740 351234 353367 358344 364230 364585 368277 369720 373464 373815 377720 378252 387660 388206 390260 392630 400140 402570 403848 405270 409773 415935 420280 420888 424935 426284 430920 431340 437076 437502 447930 454329 465192 466830 468312 471156 472815 473499 485640 486324 491036 498420 504810 509922 510419 517608 523341 526110 526851 532855 536760 540360 546345 546364 554580 560196 566580 567378 581490 582309 583336 585390 588945 597240 598104 605772 607905 613795 622440 630420 631332 639426 647010 656253 665496 673080 679896 682955 697788 700245 701480 702468 706734 728460 729170 736554 745997 747630 756504 757215 764883 775320 776412 780520 785260 789165 800280 805140 810540 819546 831870 849870 851067 852568 862680 872235 874152 875004 878085 895860 908658 933660 942312 945630 946998 959139 970515 972648 982072 996840 1009620 1019844 1020838 1046682 1052220 1053702 1060101 1065710 1092690 1092728 1093755 1104831 1109160 1120392 1133160 1134756 1162980 1164618 1170780 1177890 1211544 1215810 1227590 1229319 1260840 1262664 1274805 1278852 1294020 1312506 1365910 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22127742 22379910 22968855 23019336 23292360 23625108 24586380 24937614 25442424 26250120 26515944 26855892 27562626 27708460 28409940 28774170 29093883 29503656 29531385 29839880 30595320 30625140 31611060 31803030 33144930 33250152 33569865 34042680 34529004 36750168 36879570 37406421 38365560 38791844 39375180 39773916 40283838 41343939 41562690 42404040 43161255 44193240 44255484 44759820 45937710 47250216 48489805 49172760 49717395 49875228 53711784 55125252 55319355 55416920 56819880 57548340 58187766 59062770 60425757 61250280 62344035 63222120 63606060 66289860 67139730 68906565 69058008 73759140 74812842 77583688 78750360 79547832 80567676 82687878 83125380 86322510 87281649 88510968 89519640 91875420 96979610 99434790 99750456 100709595 110250504 110638710 112219263 115096680 116375532 118125540 120851514 124688070 127212120 132579720 134279460 137813130 145469415 147518280 149625684 161135352 165375756 166250760 172645020 174563298 183750840 187032105 193959220 198869580 201419190 206719695 221277420 224438526 232751064 236251080 241703028 249376140 261844947 268558920 275626260 290938830 299251368 302128785 330751512 345290040 349126596 374064210 387918440 397739160 402838380 413439390 436408245 442554840 448877052 483406056 498752280 523689894 551252520 561096315 581877660 604257570 698253192 748128420 785534841 805676760 826878780 872816490 897754104 1047379788 1122192630 1163755320 1208515140 1309224735 1496256840 1571069682 1653757560 1745632980 2094759576 2244385260 2417030280 2618449470 3142139364 3491265960 3927674205 4488770520 5236898940 6284278728 7855348410 10473797880 15710696820 31421393640
• Sum of all divisors σ(n): 140507136000
• Sum of proper divisors (its aliquot sum) s(n): 109085742360
• 31421393640 is an abundant number, because the sum of its proper divisors (109085742360) is greater than itself. Its abundance is 77664348720

Bases of 31421393640

• Binary: 11101010000110111000110101011101000₂
• Hexadecimal: 0x750DC6AE8
• Base-36: EFNHII0

Squares and roots of 31421393640

• 31421393640 squared (31421393640²) is 987303978279832449600
• 31421393640 cubed (31421393640³) is 31022466943868625472127060544000
• The square root of 31421393640 is 177260.8068355777
• The cube root of 31421393640 is 3155.5505945409

Scales and comparisons

• 31,421,393,640 seconds is equal to 999 years, 5 weeks, 2 days, 12 hours, 54 minutes.
• To count from 1 to 31,421,393,640 would take you about one thousand, nine hundred ninety-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 31421393640 cubic inches would be around 263 feet tall.

Recreational maths with 31421393640

• 31421393640 backwards is 04639312413
• 31421393640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31421393640's digits is 36
• More coming soon!