72121308840

Names of 72121308840

• Cardinal: 72121308840 can be written as Seventy-two billion, one hundred twenty-one million, three hundred eight thousand, eight hundred forty.

Scientific notation

• Scientific notation: 7.212130884 × 10¹⁰

Factors of 72121308840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 967

Divisors of 72121308840

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 19 20 21 23 24 28 30 35 36 38 40 42 45 46 56 57 60 63 69 70 72 76 79 84 90 92 95 105 114 115 120 126 133 138 140 152 158 161 168 171 180 184 190 207 210 228 230 237 252 266 276 280 285 315 316 322 342 345 360 380 395 399 414 420 437 456 460 474 483 504 532 552 553 570 630 632 644 665 684 690 711 760 790 798 805 828 829 840 855 874 920 948 966 1035 1064 1106 1140 1185 1197 1260 1288 1311 1330 1368 1380 1422 1449 1501 1580 1596 1610 1656 1658 1659 1710 1748 1817 1896 1932 1995 2070 2185 2212 2280 2370 2394 2415 2487 2520 2622 2660 2760 2765 2844 2898 3002 3059 3160 3192 3220 3316 3318 3420 3496 3555 3634 3864 3933 3990 4140 4145 4370 4424 4503 4740 4788 4830 4974 4977 5244 5320 5451 5530 5688 5796 5803 5985 6004 6118 6440 6555 6632 6636 6840 7110 7245 7268 7461 7505 7866 7980 8280 8290 8295 8740 9006 9085 9177 9480 9576 9660 9948 9954 10488 10507 10902 11060 11592 11606 11970 12008 12236 12435 12719 13110 13272 13509 14220 14490 14536 14922 15010 15295 15732 15751 15960 16353 16580 16590 17409 17480 18012 18170 18354 19067 19320 19665 19896 19908 21014 21804 22120 22515 23212 23940 24472 24870 24885 25438 26220 27018 27255 27531 28440 28980 29015 29844 30020 30590 31464 31502 31521 32706 33160 33180 34523 34818 36024 36340 36708 37305 38134 38157 39330 39816 42028 43608 45030 45885 46424 47253 47880 49740 49770 50876 52227 52440 52535 54036 54510 55062 57201 57960 58030 59688 60040 61180 63004 63042 63595 65412 65491 66360 67545 69046 69636 72680 73416 74610 76268 76314 78660 78755 81765 84056 87045 90060 91770 94506 94563 95335 99480 99540 101752 103569 104454 105070 108072 109020 110124 110257 114402 114471 116060 122360 126008 126084 127190 130824 130982 133469 135090 137655 138092 139272 141759 149220 152536 152628 157320 157510 157605 163530 171603 172615 174090 180120 183540 189012 189126 190670 190785 196473 199080 207138 208908 210140 218040 220248 220514 228804 228942 232120 236265 241661 252168 254380 261135 261964 266938 270180 275310 276184 283518 286005 298440 305256 310707 315020 315210 327060 327455 330771 343206 345230 348180 362273 367080 378024 378252 381340 381570 392946 400407 414276 417816 420280 441028 457608 457884 458437 472530 472815 483322 508760 517845 522270 523928 533876 540360 550620 551285 567036 572010 572355 589419 621414 630040 630420 654120 654910 661542 667345 686412 690460 696360 708795 724546 724983 756504 762680 763140 785892 800814 828552 858015 882056 915768 916874 945060 945630 966644 982365 992313 1035690 1044540 1067752 1086819 1101240 1102570 1134072 1144020 1144710 1178838 1201221 1208305 1242828 1244329 1260840 1309820 1323084 1334690 1372824 1375311 1380920 1417590 1449092 1449966 1506293 1526280 1553535 1571784 1601628 1653855 1716030 1811365 1833748 1890120 1891260 1933288 1964730 1984626 2002035 2071380 2089080 2173638 2174949 2205140 2288040 2289420 2292185 2357676 2402442 2416610 2485656 2488658 2535911 2619640 2646168 2669380 2750622 2835180 2898184 2899932 2947095 3012586 3107070 3203256 3260457 3307710 3432060 3622730 3624915 3667496 3732987 3782520 3929460 3969252 4004070 4125933 4142760 4347276 4349898 4410280 4518879 4578840 4584370 4715352 4804884 4833220 4961565 4977316 5071822 5338760 5434095 5501244 5670360 5799864 5894190 6006105 6025172 6214140 6221645 6520914 6615420 6864120 6876555 7245460 7249830 7465974 7531465 7607733 7858920 7938504 8008140 8251866 8694552 8699796 8710303 9037758 9168740 9609768 9666440 9923130 9954632 10143644 10544051 10868190 10874745 11002488 11198961 11788380 12012210 12050344 12428280 12443290 12679555 13041828 13230840 13556637 13753110 14490920 14499660 14931948 15062930 15215466 16016280 16302285 16503732 17399592 17420606 18075516 18337480 18664935 19846260 20287288 20629665 21088102 21736380 21749490 22397922 22594395 22823199 23576760 24024420 24886580 25359110 26083656 26130909 27113274 27506220 28619567 28999320 29863896 30125860 30430932 31632153 32604570 33007464 34841212 36151032 37329870 38038665 39692520 41259330 42176204 43472760 43498980 43551515 44795844 45188790 45646398 48048840 49773160 50718220 52261818 52720255 54226548 55012440 55994805 57239134 60251720 60861864 63264306 65209140 67783185 69682424 74659740 76077330 78392727 82518660 84352408 85858701 86997960 87103030 89591688 90377580 91292796 94896459 101436440 104523636 105440510 108453096 111989610 114115995 114478268 126528612 130418280 130654545 135566370 143097835 149319480 152154660 156785454 158160765 165037320 171717402 174206060 180755160 182585592 189792918 200336969 209047272 210881020 223979220 228231990 228956536 253057224 257576103 261309090 271132740 286195670 304309320 313570908 316321530 343434804 348412120 379585836 391963635 400673938 421762040 429293505 447958440 456463980 474482295 515152206 522618180 542265480 572391340 601010907 627141816 632643060 686869608 759171672 783927270 801347876 858587010 912927960 948964590 1001684845 1030304412 1045236360 1144782680 1202021814 1265286120 1287880515 1567854540 1602695752 1717174020 1803032721 1897929180 2003369690 2060608824 2404043628 2575761030 3005054535 3135709080 3434348040 3606065442 3795858360 4006739380 4808087256 5151522060 6010109070 7212130884 8013478760 9015163605 10303044120 12020218140 14424261768 18030327210 24040436280 36060654420 72121308840
• Sum of all divisors σ(n): 298321920000
• Sum of proper divisors (its aliquot sum) s(n): 226200611160
• 72121308840 is an abundant number, because the sum of its proper divisors (226200611160) is greater than itself. Its abundance is 154079302320

Bases of 72121308840

• Binary: 1000011001010110000111101011010101000₂
• Hexadecimal: 0x10CAC3D6A8
• Base-36: X4R5Y20

Squares and roots of 72121308840

• 72121308840 squared (72121308840²) is 5201483188794662145600
• 72121308840 cubed (72121308840³) is 375137775485127855946274647104000
• The square root of 72121308840 is 268554.1078442107
• The cube root of 72121308840 is 4162.5027477189

Scales and comparisons

• 72,121,308,840 seconds is equal to 2,293 years, 12 weeks, 1 day, 8 hours, 54 minutes.
• To count from 1 to 72,121,308,840 would take you about four thousand, five hundred eighty-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 72121308840 cubic inches would be around 346.9 feet tall.

Recreational maths with 72121308840

• 72121308840 backwards is 04880312127
• 72121308840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72121308840's digits is 36
• More coming soon!